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How To Light Pilot On Robertshaw Gas Valve

Let go of the knob slowly. Set meter to MV or Volts DC. Variable Flame Remote: The Variable Flame Remote lighting method features an included pilot valve assembly you install on your burner. Hold the tubing securely in place and slowly tighten the fitting until you feel a slight “give”. Look on the gas vavle and you'll see the word "PILOT" next to a screw. sku: 74-00U. glennsnelwar. The pilot lights … read more. 4 – Replace Gas Valve If the temperature has exceeded the limit the gas valve will need to be. The button on the top (looks like a shaft in the illustration) is pressed to open the valve to allow pilot gas to flow through the manual valve on the front of the safety to the pilot assembly. Hydraulic pilot to open main gas valve. Constant burning can weaken metal housing and cause it to crumble and block gas. Our automatic pilot valves shut off both the main and pilot gases. Millivolt Gas Valves are solidly manufactured for long lasting durability and dependability. A recent revision in the standards “miswiring requirements for gas valves” was effective January 1, 1996. I also replaced the thermocouple. I suspect they are the "white" terminal and TH1. A thermocouple is a safety device and is a component of the ignition system. 1830 Incinerator-Target Pilot. STEP 6: While pressing and holding in the valve knob (in "PILOT" position - it should press in about 1/4"), press the red piezo button repeatedly (once per second) until the pilot ignites. RobertShaw 710-503 Replaces General Controls ITT, Superior, and Lennox Models: CI 30 Series millivolt gas valves. Universal Gas Valve, HSI/DSI Single Stage, Slow Opening, Inlet / Outlet Pressure Taps, Plastic Hose Barb (For Connection To ¼ Hose/Flexible Tubing), LP Gas Conversion Kit, Inlet/Outlet Reducer Bushings (1/2 NPT X 3/8 NPT) 100KBTU/Hr (Nat Gas), 24V, 60 Hz, 1/2 X 1/2 NPT, Replaces 36G24-214. Hi, I am replacing a nat gas heating contol on a heat-n-glow fireplace - old one a Robertshaw 7000 MVRB-S-LC with a new 710 series millivolt control. I replaced the thermocouple last night and it still wouldn't light. Constant burning can weaken metal housing and cause it to crumble and block gas. Insert clean, deburred tubing all the way through the fitting. • If you cannot reach your gas supplier, call the fire department. By holding the button down, you are allowing gas into the valve and, at the same time, blocking the flow of gas to the main burner outlet port while allowing it to flow to the pilot burner through a pilot tube coming from the gas valve body. To operate it had to have a continuous pilot burning. Pilot light will not stay lit. Gas valve Brand: Dearborn Price: $35. I am having problems lighting my furnace. Only 11 left in stock - order soon. Turn gas to each top burner down via burner valve adjustment nut Turn until yellow tips on burner go away and you have a nice blue flame Remove broiler pan and adjust oven burner via nut on safety valve - again adjust burner until the the yellow goes away and you have a nice blue flame. To REDUCE pilot pressure, turn the pilot. I have a Robertshaw gas valve model DO. Tags :old furnace pilot light robertshaw gas valve 7000bmvr robertshaw 7000bmvr manual honeywell gas control valve lowes robertshaw gas valve pilot adjustment sit gas valve pilot adjustment rheem water heater parts near me how big should pilot light be coleman 7900 series furnace pilot light gas water heater parts diagram. To remove the thermocouple, chase the connecting wire (or sometimes it looks like a tube) back to the gas valve and use the appropriately sized open-end wrench (typically 3/8-inch) to unscrew the threaded end from the gas valve. When the thermocouple is warmed, an electromagnet is energized that holds the main gas valve in the safety open. With this valve you still have to hold the knob down to get the pilot to stay alight but once the pilot is going the main flame is controlled by the thermostat. Combination thermostat/gas valve has wide differential or is out of calibration. Push in terminal. See ADJUSTMENT section (page 5) and fig. To turn off the pilot light, find the valve on the gas line running directly to your furnace. service in one compact control, Robertshaw's 24 volt combination gas valves are the answer. This is a BRAND NEW OEM Intertherm/Nordyne/Miller Mobile Home furnace Gas Valve!. Turn the gas key. Only 1 left in stock - order soon. The fix: Check your gas valve. $75 call or text RobertShaw Pilot Natural Gas Valve - materials - by owner - sale try the craigslist app » Android iOS. Flip a brass fitting on the valve to convert it from NAT gas to LP gas. The magnet assembly is energized by voltage generated by a thermocouple that is heated by the pilot flame. They incorporate a manual valve, pilot valve, and a main gas pressure regulator. The relay (red box) or signal that energizes the relay (small wires on bottom) is most likely the problem. Because of this, the yellow flame will not adequately heat up the thermocouple, and the gas supply to the pilot light will be shut. I am having problems lighting my furnace. The gas valve likely has a pilot adjustment. 5" WC, $109. Will need the Model and serial Number of your Furnace. glennsnelwar. If your gas valve is set to OFF or is faulty in some way, a consistent supply of gas won’t be delivered to your pilot light, resulting in a flame that goes out. Robertshaw Gas Valve part number 710-502. When the pilot light is functioning properly, the thermocouple will generate a small voltage that is fed back to the gas valve to keep the gas flowing to the pilot light. Chest Handles; Folding T/Paddle Handles; L Handles; Refrigeration. Variable Flame Remote: The Variable Flame Remote lighting method features an included pilot valve assembly you install on your burner. I can't get the pilot light to stay lit. a manual valve, safety. Gas valve Brand: Dearborn Price: $35. To REDUCE pilot pressure, turn the pilot. Valve Magnet Brand: Rinnai Valve Part Price: $0. This valve features built-in stops to avoid accidental setting to the off position. I wanted to turn the pilot light off and noticed with the gas meter it was still leaking when turned perpendicular to the on position. Combination Safety Gas Valve. Robertshaw 720-474 from HVAC Parts Outlet a Disable Veteran owned company Robertshaw 720-474 24V 1/2" X 1/2" STANDING PILOT GAS VALVE W/STEP OPENING FEATURE INCLUDES LP KIT 150,000 BTU 7200ERCS REPLACES VR8200C1082. However, if the unit will light and stay lit by jumping the black and blue wires the valve appears to be good. The gas valve is usually the last option when troubleshooting why your gas fireplace won’t stay lit. Millivolt Gas Valves Are Used For Various Standing Pilot Type Appliances. Robertshaw® Pilot Ignition Gas Valves include a manual valve, pilot valve, dual automatic valves and a main gas pressure regulator. The 720 Series constant pilot gas valve is a six function valve incorporating a manual valve. If the pilot stayed on, you are ready to light the furnace. G Gas Combustion Combination Controls and Systems—G779 Universal Intermittent Pilot Ignition Control 9 Company (Cont. Pilot flame recognition stops ignition sparking and opens the main valve portion of the gas valve. Use only your hand to turn the gas control knob. The first valve when open supplies gas to the furnace pilot light. Clearances are for SPK manual pilot valves. Connect millivolt meter leads to adapter and thermocouple as shown in fig. From simple key valves to remote kits, we offer varying levels of automation to give your fireplace a more modern touch. That screw needs to be removed & the pilot adjustment screw is located behind the one you removed. Robertshaw 720-474 - 1/2" X 1/2" 24v Step Opening Pilot Gas Valve w/ Convertible Regulator (150,000 BTU) - The 720 Series Dual Valve Gas Controls are designed for a wide variety of heating applications and can be used to replace most constant pilot valves, including dual valve (six function) models. Robertshaw® R110 Series Gas Control Valve Notice. i believe the manufacturer is lennox. If it has a valve that has to be turned off or on more than that, the valve may be a 1/4 turn valve that's defective (index stops are busted) or there is a globe or gate valve installed which is not approved by any gas code. Tags :old furnace pilot light robertshaw gas valve 7000bmvr robertshaw 7000bmvr manual honeywell gas control valve lowes robertshaw gas valve pilot adjustment sit gas valve pilot adjustment rheem water heater parts near me how big should pilot light be coleman 7900 series furnace pilot light gas water heater parts diagram. Not the pilot that is lit, but the pilot valve that controls the pilot flame height. 3) Pilot flame ignition Start from the OFF position (Fig. 4 product ratings - Robertshaw 700-400 - Combination Gas Valve 1/2" x 3/4", LP Kit, 300-501-503. These valves feature a manual valve (gas cock), an automatic pilot safety valve, inlet/outlet screens, pilot out-let, pilot gas filter and pilot adjustment key. As previously mentioned the pilot light operates all the time and the gas furnace has a device to verify that the pilot light is lit. Open pilot valve or replace defective Stay Lit in closed position. I have a robertshaw-grayson fireplace gas valve model 7000MVRLC 711-811-415. Robertshaw 720 Series Standing Pilot Light Gas Valve 720-472 by Robertshaw. • Do not touch any electric switch; do not use any phone in your building. The gas valve also acts as a safety device to shut off the gas automatically in case of flame failure. The Robertshaw® Series Gas Controls are designed for a wide variety of heaƟng incorporaƟng a manual valve. I replaced the thermocouple last night and it still wouldn't light. The pilot lights … read more. The manual pilot valve stop can be adjusted for maximum pilot flow. What is a gas furnace pilot light? A pilot light is a small, continuously burning flame that is used to ignite the burners in older gas furnaces. Try adjusting the pilot light so that it more directly hits the thermocouple, check for clogged holes in the gas supply for the pilot as the. Gas Control Pilot Valve 28-A38-005. for the last year, i have left the pilot light always on and turn the fireplace on/off when needed using the wall switch. Regulated and non-regulated models are available. If the pilot does not light, wait 5 minutes and try again. OPERATING, smell all around the. Controls pilot on heater and is one of the reasons the pilot may not stay on. *Tip and FYI : Some contractors have told me that many of the SmartValves are having problems with the 4 wire connector that plugs into the top of the valve. Manufacturer: Robertshaw Controls Company of Long Beach, Calif. The TH stands for “THermostat,” and those two wires connect to the thermostat device (or in most cases, a wall switch) that tells the valve to open. When this part has gone bad, replacing it is usually a more efficient and cost-effective option than repair. Thanks! Jeff. This can result in a gas explosion and fire. Its purpose is to not allow the gas valve to open if the pilot light isn’t lit. Robert Shaw MFG. I suspect they are the "white" terminal and TH1. With the burners on, the millivolt reading should be ~200mV. Valve Magnet Brand: Rinnai Valve Part Price: $0. ) Part Number Wiring Figure Robertshaw 780-715 6 Robertshaw 780-735 6 Robertshaw 780-736 6 Robertshaw 780-737 6 Robertshaw SP715 6 Robertshaw SP735 6 Robertshaw SP735D 6 Robertshaw SP735L 6 Robertshaw USI1715U 3, 4, 5, or 6. Gas-Fired Units, 2. If resistance is outside of specifications listed, the gas valve must be replaced. Maximum Capacity is 70,000 BTU for Natural Gas and 112,000 on LP Gas. Refer to manufacturer’s lighting instructions Duct Furnaces and plunger not depressed on serial plate and relight pilot. By holding the button down, you are allowing gas into the valve and, at the same time, blocking the flow of gas to the main burner outlet port while allowing it to flow to the pilot burner through a pilot tube coming from the gas valve body. A direct acting valve has only a small flow circuit, shown within section E of this diagram (this section is mentioned below as a pilot valve). The gas used by the pilot lowered the efficiency of the furnace. Gas grill valves attach to the grill manifold and have an orifice on the end that goes into the firebox and includes a valve stem where the control knob goes. Down inside the gas valve is a small screw. This valve is a bit differentthe "set" position is where you hold it to light pilot. The following steps show how to light the pilot light on Robertshaw and Rodgers-White gas valves, which are similar to the above Honeywell gas valve: Set the thermostat to its lowest settings. 4 Re-Calibration of the Robertshaw 110SS Gas Heating Control (see Figure No. Open pilot valve or replace defective Stay Lit in closed position. No incoming gas or too low gas pressure. The gas valve likely has a pilot adjustment. Depending on how far away the gas valve knob is, you may need to have a friend hold the lighter or operate the key. If the pilot light on your gas fireplace won’t stay lit, a very likely culprit is a component called a thermocouple. Make sure you reposition the valve back to “on” when. There are four possible reasons for solenoid valves malfunction: coil burnout, failure to open, failure to close, or solenoid valve noise. TROUBLESHOOTING THE APK-15(P) SAFETY PILOT KIT HOW TO LIGHT THE PILOT 1. Once you insert the key, do not turn it until after preparing your lighter, otherwise you may release a dangerous amount of gas into the room. GAS IGNITION CONTROLS 780-84524 VAC INTERMITTENT PILOT IGNITION CONTROLS When the thermostat calls for heat, the 780-845 control simultaneously ini-tiates ignition sparking and opens the pilot valve portion of the gas valve. Check that the thermocouple is securely screwed into the thermostat assembly; Check that the thermocouple is properly secured near the pilot light flame; Thermocouple may have failed and requires replacement; Condensation may be extinguishing the pilot light; Make sure gas line is turned on. This can be remedied by looking at the termination or windshield on the outside of the home. I'm not sure how to adjust it though so I wanted to post here. Be the first to write a review. There is usually a start up sequence. Hazard: Fire hazard. Gas Valve Actuator Types • Manual - Standing pilot valve manually turned ON and OFF for each heating cycle. It often stops up because there isn't enough water flow so I would like to adust it to allow more water. I can't get the pilot light to stay lit. You can avoid this problem by getting a furnace tune-up every year, when we’ll clean the intake valve, and also by changing your air filter every month. Millivolt Gas Valves are solidly manufactured for long lasting durability and dependability. Although they are gradually being replaced by electronic ignition devices, pilot lights still provide the flame that ignites many gas appliances, including water. 5 out of 5 stars 29. So why would the pilot light be lit if the gas line shut off valve is in the closed position? Only thing I can think of is that the shut off valve is faulty and is not doing a proper job of shutting off the gas in the line. The reason for this standard was so that you as a service technician could disconnect the gas valve wires and reconnect them without making a mistake. The 720 Series constant pilot gas valve is a six function valve incorporating a manual valve. This valve also has a compact swing radius of only 3-9/16” to enable it to fit a wide range Robertshaw 720-474 Features. An Operating Instructions tag was supposed to be left hanging from the safety valve by the installer. When working properly, the pilot light will hit the thermocouple rod which generates a small electrical current to keep the gas valve open. 2 for details) If the burner will light but will not shut off, the temperature sensing bulb probably has lost some of its fluid. Unscrew thermocouple from control. Pilot Burners. If solenoid valves are malfunctioning, dangerous pressure might build up and cause damage. There is usually a start up sequence. Special offers and product promotions. The model of the valve is a Robertshaw-grayson 7200ERCS-1. The pilot flame is in good contact with the sensor. The Robertshaw® 720 series standing pilot light gas valve with an integral manual selector, offers four different gas flow positions like set, on, off and pilot. Brand new box open but never used. Diagnostic Testing How to test gas pressure & millivolts on a SIT valve. I know this one, it has a gizmo called a thermocouple, this is comprised of two dissimilar metals that when heated generate a voltage. If it doesn't you have a very dirty pilot, a bad thermocouple or gas valve. We have learned of a potential failure that could occur with certain Robertshaw® R110 series gas control valves installed on four models of GSW/John Wood 40-gallon natural gas water heaters. pilot gas valve is a six function valve incorporating. TROUBLESHOOTING THE APK-15(P) SAFETY PILOT KIT HOW TO LIGHT THE PILOT 1. Also be sure to change your burner orifices when converting. If the pilot light goes out, the gas valve could stick in an open position, permitting gas to continue to flow some places it retails for $232. Ultimately, pilot safety valves are an important aspect of any commercial kitchen because they help keep your staff safe from gas leaks or fires. Manufacturer: Robertshaw Controls Company of Long Beach, Calif. Trouble Shooting Figure No. Push in terminal. pilot valve. Take something like a fireplace match and hold it lit between the pilot and thermocouple, press the pilot button/valve down and see if there’s any flame distortion, that may tell you whether you have gas or not, if you have distortion, try holding the valve down longer as you may just have air in the line. Gas valve, ½" x ½", Natural gas GWA-052 to GWA-175 Honeywell VR8204A-2001 Robertshaw 7200ER 7AO-A1B-042 511044381WT White-Rodgers 36E36-266 Gas valve, ¾" x ¾", Natural gas GWA-210 and -245 Honeywell VR8304P-4348 511044382WT 3 Pilot assembly kit with orifice and aluminum pilot gas tubing GWA-052 to GWA-245 International Comfort Products. Multiple inlet and outlet sizes and orientations, multiple BTU capacity options, types of actuators, available inlet/outlet pressure taps along with. I have a Robertshaw gas valve model DO. Gas valves rarely go bad. To remove the thermocouple, chase the connecting wire (or sometimes it looks like a tube) back to the gas valve and use the appropriately sized open-end wrench (typically 3/8-inch) to unscrew the threaded end from the gas valve. I do not have any idea what the SET position is for. The automatic pilot safety is separa te from gas cock and provides shutoff in case of pilot outage. Pilot light may need relighting, see section below on how to check & relight the pilot light; Check that the isolation valve in the gas line is open; Ensure there is gas supply to the other appliances in the house, try light another gas appliance; Continuous Flow water heaters. Each Uni-Kit includes all the necessary parts and instructions needed to convert to direct spark or hot surface applications. As previously mentioned the pilot light operates all the time and the gas furnace has a device to verify that the pilot light is lit. I can't get the pilot light to stay lit. I can not smell gas coming out of the orifice. I checked the voltage going to the relay and it was 23vac. 24 V Dual; 3. Flip a brass fitting on the valve to convert it from NAT gas to LP gas. function) models. Light the pilot, and if it remains lit you are good to go. service in one compact control, Robertshaw's 24 volt combination gas valves are the answer. Press the control knob in and hold for 5 seconds (only pilot gas will fl ow). Valve works normally with main port gas out when thermocouple is hot. The Robertshaw® 7000 Series Gas Valve is a combination gas valve that typically includes pilot safety valve, main gas regulation and main gas control. If you looking for gas valve then you are right place. A diaphragm connected to a valve controls gas flow and pressure. Put the control knob to OFF position. It may be too far from the pilot flame, the flame may be too. *If higher than 35mv check connections and switch. The magnet assembly is energized by voltage generated by a thermocouple that is heated by the pilot flame. Gas Valves, Oil Valves and Related Parts This page lists gas valves, oil valves and related parts from Honeywell, Robertshaw and White-Rodgers. The pilot won't light. Step 3: Switch the valve to the pilot setting. Tags :old furnace pilot light robertshaw gas valve 7000bmvr robertshaw 7000bmvr manual honeywell gas control valve lowes robertshaw gas valve pilot adjustment sit gas valve pilot adjustment rheem water heater parts near me how big should pilot light be coleman 7900 series furnace pilot light gas water heater parts diagram. With this valve you still have to hold the knob down to get the pilot to stay alight but once the pilot is going the main flame is controlled by the thermostat. $75 call or text RobertShaw Pilot Natural Gas Valve - materials - by owner - sale try the craigslist app » Android iOS. a few weeks ago, the pilot went out and i restarte. The fix: Check your gas valve. The heat from the pilot flame causes a current flow in the thermocouple that energizes a solenoid in the gas valve. 3) Pilot flame ignition Start from the OFF position (Fig. Let go of the knob slowly. Symptom - Intermittent shutdown or main burner will not light with on/off switch. Inlet 1/2" Pipe, Outlet 1/2" Pipe, 2 1/2" Pipe Side Outlets. A dirty pilot light orifice hinders gas flow, but the fix is simple. Controls pilot on heater and is one of the reasons the pilot may not stay on. Millivolt gas. The pilot flame must intersect the thermocouple for it to genereate the signal to tell the gas valve it's okay to light. Robertshaw 720-474 Dual Gas Valve Standing pilot Natural Gas & LP Gas The 720-474 Series Dual Valve. High pilot gas pressure may also cause the flame to lift off the burner, causing the flame sensor bulb to sense "low" heat. Turn the gas key. A very small amount of gas is continuously burnt to heat your thermocouple. Where the tube joins the other valves, you will probably see an adjustment screw. Release the knob. Adjusting the pilot often adjusting the thermocouple, which can fail to keep the gas valve open for one of at least three reasons. The safety pilot kit has a safety mechanism built in so if the pilot light ever goes out it will shut off the gas supply. light main burners, prove main burner flame. If you have exhausted all the possible reasons your pilot light is going out, this could be the culprit. The pilot will light. Comes set for natural gas. If the pilot went out for any reason, It had to be manually relit or the appliance would not work. Lighting a Gas Pilot: Before you try and relight a pilot light make sure to read the instructions, usually found on the front of the boiler or furnace. Service Valves; Tee Check & Tee Block Manifolds; Gas Valve Control; Knobs; Manchester Propane Tanks & Accessories; Pilots, Orifices, & Thermocouples; Thermostat Control & High Limit Control; Gas Valves; Suburban Water Heaters; Hardware. The TH stands for “THermostat,” and those two wires connect to the thermostat device (or in most cases, a wall switch) that tells the valve to open. If the pilot still will not stay lit, then the only thing left is the combination safety gas valve. be used to replace most constant pilot valves,. Adjust temperature dial on combination thermostat/gas valve. Robertshaw 720-474 Standing Pilot Light Gas Valve. The ignition module was replaced about 10 years ago with a RobertShaw 780-715 I believe the gas valve is original; it’s a RobertShaw with the following numbers 7100 DER-S7C, 71F-11A-017, and 18G8801. The Valve Vanisher also removes the need to off-center or downsize a gas log set to accommodate the control box, which also enhances the appearance of your fireplace. It is available for nearly any application. Lighting the pilot light on RobertShaw and Rodgers-White gas control valves. Shop Robertshaw Gas Fireplace Valve and other products, call 1-800-979-3267. Its purpose is to not allow the gas valve to open if the pilot light isn’t lit. The Robertshaw® 720 series standing pilot light gas valve with an integral manual selector, offers four different gas flow positions like set, on, off and pilot. Comes With Two 1/2" X 3/8" Reducer Bushings. When this happens, the flame’s oxygen supply will be restricted. Pilot valve inoperative or 1. Turn the gas valve from "off" to "pilot. " Light the match and place it at the pilot while you hold the red reset button down or depress the knob for 30-50 seconds. In this example, a. I'm not sure how to adjust it though so I wanted to post here. It often stops up because there isn't enough water flow so I would like to adust it to allow more water. Simplify the ignition process for your gas log set with a gas valve kit and enjoy the convenience a new valve kit provides. Gas grill valves attach to the grill manifold and have an orifice on the end that goes into the firebox and includes a valve stem where the control knob goes. G-PILOT - Twin Gas Needle Valve Combo for fine control of G-Pilot and Burner ♦ Combo package has a twin gas needle valve fitting, 24" of aluminum tubing, stainless steel pilot assembly, two stainless cable ties, and a gas orifice fitting of your choice for the burner. Specifications: Dimensions: 30mm diameter x 21mm height This is a Genuine Original Equipment Manufacturer (OEM) Part. With the pilot light lit, turn this screw to increase the size of the pilot light just to the point that the pilot will stay lit during the normal cycling of the appliance. I have a Robertshaw gas valve model DO. Constant burning can weaken metal housing and cause it to crumble and block gas. I've replace this twice with two new valves and the problem persists that there is no gas out on pilot port gas out even when holding the control in "SET" position. When replacing the thermopile you must replace the entire pilot assembly. Step 1 - Check for Coil Burnout. Voltage drop across the switch terminals Burner on: 35 mv or less. A millivolt gas valve is used in a standing pilot type of appliance. Gas Valve, 200,000 BtuH Capacity, Standing Pilot Ignition Type, 750 mV Coil Volts, NG Gas Type Item # 4E128 Mfr. Check Engine light: On newer car models with electronic valves, the vehicle’s computer will trigger the Check Engine light when there is a problem with the EGR valve and passages. If the new valve is basically the same model as the old one, you don’t need to pay a plumber to replace the evil valve. Brand new box open but never used. ANSI Certified burners meet codes in most states and have the safety valve attached and tested at the factory. The automatic pilot safety is separa te from gas cock and provides shutoff in case of pilot outage. Robertshaw 700-506 Gas Valve, Fast Opening, 200,000 BTUH 4. UNIVERSAL GAS VALVE VR8300A3500 Robertshaw: 720-406 (7200ER) White-Rodgers: 36C01-405 VR8345M4302 White-Rodgers: 36E36-304, 36C68-423 SMART VALVE VR8300A3500 24 Vac Dual Standing Pilot Gas Valve with 1/2" x 3/4" inlet/outlet, standard opening and 3. If the pilot light flames goes out, a thermocouple heat sensor will sense the flame is missing and stop delivering electricity to the valve, then closes so gas doesn't leak. 4 product ratings - Robertshaw 700-400 - Combination Gas Valve 1/2" x 3/4", LP Kit, 300-501-503. These valves may potentially result in gas leakage and should be replaced. These valves automatically control main gas flow. I know this one, it has a gizmo called a thermocouple, this is comprised of two dissimilar metals that when heated generate a voltage. Gas Furnace Controls Last modified by:. When the pilot light is functioning properly, the thermocouple will generate a small voltage that is fed back to the gas valve to keep the gas flowing to the pilot light. I am having problems lighting my furnace. Insert clean, deburred tubing all the way through the fitting. Gas Valve, 200,000 BtuH Capacity, Standing Pilot Ignition Type, 750 mV Coil Volts, NG Gas Type Item # 4E128 Mfr. Shipped with USPS Priority Mail. The pilot lights … read more. Manufacturer: Robertshaw Controls Company of Long Beach, Calif. Robertshaw White-Rodgers. If it remains lit, press the valve knob in slightly. ANSI Certified burners meet codes in most states and have the safety valve attached and tested at the factory. It is made of a small rod and copper wire and serves as a safety device to turn off the gas when a problem appears. Turning the pilot light off during the warm spring and summer months can save on gas and money. and heat it with a torch while pressing the knob. Once lit you must continue to hold the red button until the heat from the pilot travels down the thermocoupler back the TS-11. Free Ground Shipping To The Lower 48 States! Robertshaw 720-400 24v 1/2' X 3/4' Standing Pilot Gas Valve Includes. The thermocouple generates about 20-30 millivolts, enough electricity to keep the part of the gas valve that controls gas flow to the pilot assembly open. Gas Valve Kits Simplify the use of your fireplace with a valve kit. When the thermostat signals for gas to be delivered from the gas valve to the burner, it is the standing pilot that ignites the. Hazard: Fire hazard. I replaced the thermocouple last night and it still wouldn't light. A gas furnace's standing pilot (in which the flame is lit at all times) is sometimes referred to as a pilot light, but no matter what you call it, its purpose is to serve as a small ignition flame for the gas burner. 24 V Dual; 3. Turn the knob counterclockwise to PILOT position, push the knob down, and hold in position. Robertshaw Gas Valve, 710 Low Profile - Part# 710-218 The 710 low capacity gas heating valves are designed for recreational vehicles and other applications with limted space. Suitable replacement for the following OEM part numbers: ANETS Part No. The model of the valve is a Robertshaw-grayson 7200ERCS-1. The 720 Series constant pilot gas valve is a six function valve incorporating a manual valve. Its purpose is to not allow the gas valve to open if the pilot light isn’t lit. 1/2″ gasline inlet on the left, 3/8″ outlet on the back. White Rodgers/Robertshaw Gas Valve Troubleshooting Chart SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Pilot Will Not Light 1. The set position allows pilot gas. Millivolt gas. There are four possible reasons for solenoid valves malfunction: coil burnout, failure to open, failure to close, or solenoid valve noise. page 4: intermittent pilot operation thermostats robertshaw 7100 gas valve gasvalveknob8_ in off l_ition figure 3 robertshaw 7000 gas valve typical fuseidisconnect switch box mounted on furnace for unit to operate disconnect switch must bf in "off' position pogition wigte rqdgers 36e gas valve figure 4 gas valve location knob gasvalve. If it remains lit, press the valve knob in slightly. I have a robertshaw-grayson fireplace gas valve model 7000MVRLC 711-811-415. Millivolt Gas Valves Are Used For Various Standing Pilot Type Appliances. I wanted to turn the pilot light off and noticed with the gas meter it was still leaking when turned perpendicular to the on position. 24 V Dual; 3. Just above that to the left and right of the large center screw, is a smaller gas line in and out for the pilot light. Rotate the screw on the pilot light clockwise, and the size of the flame will decrease. heating applications and can. It often stops up because there isn't enough water flow so I would like to adust it to allow more water. Pilot Gas and Lighting Procedure 1. Step by step instructions for relighting a gas water heater pilot light. DIAL KNOB FOR Commercial Fryer,Fits Robertshaw 700 Series Gas Pilot Safety Valve - $4. Gas valves are flow control devices that control the flow of gases. The magnet assembly is energized by voltage generated by a thermocouple that is heated by the pilot flame. It is available for nearly any application. The lever pushes in when in PILOT position, which I assume is to overide the pilot sensor while lighting the pilot. Remember to shut the gas supply valve off (picture #1). The pilot won't light. Some valves stick in the open position, permitting gas to continue to flow after the pilot light goes out. Robertshaw 1710-126 1/2 gas valve body $25. There must be two terminals in this connector block that powers the gas valve coil. Special offers and product promotions. Unscrew top front panel, and remove to access the thermocouple block. The automatic pilot safety is separa te from gas cock and provides shutoff in case of pilot outage. Pilot valve inoperative or 1. press a manual press bypass valve, and app!y ignition. The 720 Series constant. It is a rare case to get a malfunctioning gas valve but we cannot completely rule out its possibility. 5 out of 5 stars 29. It's designed for STANDING PILOT Furnaces. Hi, I am replacing a nat gas heating contol on a heat-n-glow fireplace - old one a Robertshaw 7000 MVRB-S-LC with a new 710 series millivolt control. White Rodgers/Robertshaw Gas Valve Troubleshooting Chart SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Pilot Will Not Light 1. Hold the lighted match to the pilot opening while you push reset on the pilot control panel. The Thermopile, energized by the pilot flame, generates sufficient power to operate the gas valve and on/off switch. Share - ROBERTSHAW GAS VALVE PILOT KNOB-82220. The device used is called a thermocouple. The S8610U control provides ignition sequence, flame monitoring, and safety shutoff for intermittent pilot central furnaces,. try to light the pilot by hand. Name of product: Robertshaw 7000 Series Gas Control Valve Units: About 425,000 gas control valves Manufacturer: Robertshaw Controls Company of Long Beach, Calif. You can avoid this problem by getting a furnace tune-up every year, when we’ll clean the intake valve, and also by changing your air filter every month. Try adjusting the pilot light so that it more directly hits the thermocouple, check for clogged holes in the gas supply for the pilot as the. Our automatic pilot valves shut off both the main and pilot gases. Robertshaw 720-474 - 1/2" X 1/2" 24v Step Opening Pilot Gas Valve w/ Convertible Regulator (150,000 BTU) - The 720 Series Dual Valve Gas Controls are designed for a wide variety of heating applications and can be used to replace most constant pilot valves, including dual valve (six function) models. I have a Robertshaw gas valve model DO. I can't get the pilot light to stay lit. This valve also has a compact swing radius of only 3-9/16" to enable it to fit a wide range Robertshaw 720-474 Features. Use only your hand to turn the gas control knob. DIAL KNOB FOR Commercial Fryer,Fits Robertshaw 700 Series Gas Pilot Safety Valve - $4. Pilot Gas and Lighting Procedure 1. Remember to shut the gas supply valve off (picture #1). Verified 7" preasure coming in. Name of product: Robertshaw 7000 Series Gas Control Valve Units: About 425,000 gas control valves. Not all require the owner light the pilot manually. Some combined main burner and pilot gas valves (mainly by Honeywell) reduce the power demand to within the range of a single universal thermocouple heated by a pilot (25 mV open circuit falling by half with the coil connected to a 10–12 mV, 0. robertshaw 720-400 24v 1/2" x 3/4" standing pilot gas valve includes lp kit replaces 7200er & 7a7-a1b-001, 7a0-a1b-001. We recommend that you use experts when you detect that the gas valve is the problem. Make sure the gas valve that is part of the supply line is on. By holding the button down, you are allowing gas into the valve and, at the same time, blocking the flow of gas to the main burner outlet port while allowing it to flow to the pilot burner through a pilot tube coming from the gas valve body. Robertshaw 720-474 - 1/2" X 1/2" 24v Step Opening Pilot Gas Valve w/ Convertible Regulator (150,000 BTU) - The 720 Series Dual Valve Gas Controls are designed for a wide variety of heating applications and can be used to replace most constant pilot valves, including dual valve (six function) models. Gas Valves are available in a variety of styles. Ask your own. Gas Valve, 200,000 BtuH Capacity, Standing Pilot Ignition Type, 750 mV Coil Volts, NG Gas Type Item # 4E128 Mfr. The Pilot Flame wont stay on; Cost to replace gas valve thermocouple and pilot assembly for gas boiler; My boiler pilot light continues to go out after having the thermocouple replaced 2 X, and the gas valve as well. When this part has gone bad, replacing it is usually a more efficient and cost-effective option than repair. These valves automatically control main gas flow. A gas furnace's standing pilot (in which the flame is lit at all times) is sometimes referred to as a pilot light, but no matter what you call it, its purpose is to serve as a small ignition flame for the gas burner. The Intertherm Part # is 624583 (Robertshaw Model # is 7200ERCS-1) which replaces all the old #s listed below. Under normal conditions, with the pilot light lit, closing the circuit between the two TH contacts will open the gas valve and ignite your fireplace’s main burner. If it doesn't you have a very dirty pilot, a bad thermocouple or gas valve. When working properly, the pilot light will hit the thermocouple rod which generates a small electrical current to keep the gas valve open. Robertshaw voluntarily recalled models of its 7000 Series Gas Control Valves. ThermoC assy & gas valve have been changed. i believe the manufacturer is lennox. Put the control knob to OFF position. My boiler pilot light continues to go out after having the thermocouple replaced 2 X, and the gas valve as well. If your gas valve is set to OFF or is faulty in some way, a consistent supply of gas won’t be delivered to your pilot light, resulting in a flame that goes out. be used to replace most constant pilot valves,. Comes set for natural gas. VALVE, SAFETY (FMDA, 3/8) VALVE, SAFETY (FMDA, 3/8) Check Latest Price ROBERTSHAW FMDA COMMERCIAL GAS SAFETY VALVES• Capillary length48"• Inlet outlet 3/8" NPT• Button length 1 3/32 "• Valve provides positive shut off of gas when pilot is out• 1/4" O. Just above that to the left and right of the large center screw, is a smaller gas line in and out for the pilot light. a few weeks ago, the pilot went out and i restarte. More Info. The pilot valve opens and allows gas to flow to the pilot burner. About this product. Element: 42”. Name of product: Robertshaw TS-11 Thermal Safety Control Gas Valve and the “magnet head” on the gas valve Units: 123,544 gas valves and 37,350 magnet heads Manufacturer: Robertshaw Controls Company of Long Beach, California Hazard: If the pilot light goes out, the gas valve can stick in an open position, permitting gas to continue to flow. fitted new gas valve to apollo 30/50 boiler, now pilot light will not stay lit could it be the thermocouple? the pilot light worked before but the gas valve would not fire the burner hence the new gas valve settings same as original valve as it was fine before. The pilot won't light. Combination thermostat/gas valve has wide differential or is out of calibration. When the thermostat signals for gas to be delivered from the gas valve to the burner, it is the standing pilot that ignites the gas flowing to the burners to heat the air in the. Name of product: Robertshaw 7000 Series Gas Control Valve Units: About 425,000 gas control valves. Log Set Placement. device which automatically lights the pilot. Compact swing radius of 3-9/16" to enable it to fit a wide range of OEM. be used to replace most constant pilot valves,. The pilot light flame must hit the thermocouple correctly, or the voltage the thermocouple generates may not be enough to operate the main gas valve, while it is enough to keep the pilot light lit. Inlet 1/2" Pipe, Outlet 1/2" Pipe, 2 1/2" Pipe Side Outlets. If your pilot light and thermocouple are in good shape, it may be that you need a new gas control valve. Although they are gradually being replaced by electronic ignition devices, pilot lights still provide the flame that ignites many gas appliances, including water. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. Water heater pilot stays on but goes out when burner goes out. Tags :old furnace pilot light robertshaw gas valve 7000bmvr robertshaw 7000bmvr manual honeywell gas control valve lowes robertshaw gas valve pilot adjustment sit gas valve pilot adjustment rheem water heater parts near me how big should pilot light be coleman 7900 series furnace pilot light gas water heater parts diagram. Various Honeywell, Robertshaw and White-Rodgers™ brand Natural or LP gas type Regulated and Non-Regulated models are available with 1/2, 3/4 and 1 inch inlet and outlet sizes. Gas: When you prepare to light the pilot, you are instructed to turn the gas control knob to the pilot position and depress the gas control knob (Reset button on Robertshaw Gas Valves). OPERATING, smell all around the. Caution: If you smell gas do not proceed with lighting the pilot on your water heater. If the new valve is basically the same model as the old one, you don’t need to pay a plumber to replace the evil valve. The pilot will light. Set meter to MV or Volts DC. Check that the thermocouple is securely screwed into the thermostat assembly; Check that the thermocouple is properly secured near the pilot light flame; Thermocouple may have failed and requires replacement; Condensation may be extinguishing the pilot light; Make sure gas line is turned on. When the thermostat signals for gas to be delivered from the gas valve to the burner, it is the standing pilot that ignites the. Gas valve Brand: Atlanta and Thermolaire Price: $32. including dual valve (six. Gas Pressure Regulators up to ANSI 600 and Main Valves with Electric Actuation Honeywell gas pressure regulators are designed to keep the outlet pressure of a gaseous medium constant in the mains and independent of disturbing influences such as inlet pressure and flow rate changes. Millivolt Gas Valves Are Used For Various Standing Pilot Type Appliances. You'll need a tiny slotted screwdriver to adjust the pilot screw. Trouble with pilot output on RobertShaw 7200ER 720-400 gas control valve on furnace. 3) Pilot flame ignition Start from the OFF position (Fig. Remove the pilot orifice. Make sure you reposition the valve back to “on” when. Gas Controls are designed Mobile Homes with a Convertible Pressure Regulator,. Name of product: Robertshaw 7000 Series Gas Control Valve. Shipped with USPS Priority Mail. I am having problems lighting my furnace. How to adjust gerber pilot valve 99-646 [ 0 Answers ] I recently moved into a house that has a toilet with a gerber pilot valve 99-646. Simply put, the gas valve supplies your pilot light with gas. Natural Gas or 11" LP Convertible Pressure Regulation. With the lighter activated, move the gas valve knob about half a turn counter-clockwise. *If higher than 35mv check connections and switch. Ultimately, pilot safety valves are an important aspect of any commercial kitchen because they help keep your staff safe from gas leaks or fires. be used to replace most constant pilot valves,. No incoming gas or too low gas pressure. This includes the switch on the heater and the main power supply breaker for the heater. No gas detected at pilot port with sniffer. Gas valve, ½" x ½", Natural gas GWA-052 to GWA-175 Honeywell VR8204A-2001 Robertshaw 7200ER 7AO-A1B-042 511044381WT White-Rodgers 36E36-266 Gas valve, ¾" x ¾", Natural gas GWA-210 and -245 Honeywell VR8304P-4348 511044382WT 3 Pilot assembly kit with orifice and aluminum pilot gas tubing GWA-052 to GWA-245 International Comfort Products. 24 V Dual; 3. Rotate the control. The 720 Series constant pilot gas valve is a six function valve incorporating a manual valve. To avoid these headaches, clean the EGR valve and passages every 50,000 miles or ideally more regularly over the weekend at home. one valve controls gas flow to the pilot and the other part of the. Hi folks, i have a 1 year old gas fireplace with electronic start (millivolt). # 1751-012Description;DIAL & SCREW FOR 700 SERIES GAS PILOT SAFETY VALVES, 1-1/4 DIA , OFF-PILOT-ON,MOUNTS WITH SCREW ROBERTSHAW MFG # 1751-012 Replaces the following Manufacturer's ProductsOEM Numbers are used for reference onlyOEM NameOEM #ANETSP9302-92FRYMASTER8100433HENNY. What is a gas furnace pilot light? A pilot light is a small, continuously burning flame that is used to ignite the burners in older gas furnaces. Continue pressing in and manually light the pilot using a. tubing inlet and outlet for pilot• 1/8" NPT tubing inlet and o. - If the red button is about the size of a dime, you'll need either a G01479-01 TS11 safety valve or 1027001 TS11 safety valve, depending on the size of the gas / pilot tubing on your unit. When the thermocouple is warmed, an electromagnet is energized that holds the main gas valve in the safety open. Lighting a Gas Pilot: Before you try and relight a pilot light make sure to read the instructions, usually found on the front of the boiler or furnace. Also be sure to change your burner orifices when converting. It is made of a small rod and copper wire and serves as a safety device to turn off the gas when a problem appears. Part #200ATV 1/4 male into burner x 3/8 male from gas source & 1/8 pilot tap tapped for orifice spud orifice not included. If the pilot light goes out, contact Sundance Energy at 1-800-888-1045 for service. If resistance is outside of specifications listed, the gas valve must be replaced. Similar to the pilot line, the pilot valve light itself can become clogged. The first valve when open supplies gas to the furnace pilot light. The magnet assembly is energized by voltage generated by a thermocouple that is heated by the pilot flame. Natural Gas or 11" LP Convertible Pressure Regulation. Burner & Pilot Maintenance How to clean the oxygen depletion system & primary air passage. The pilot flame must intersect the thermocouple for it to genereate the signal to tell the gas valve it's okay to light. • Do not touch any electric switch; do not use any phone in your building. Thermopile readings: With all wires connected, with the pilot on and burners off, the thermopile reading at the TP & THTP terminals should be ~325mV. The 720 Series constant. If the pilot still will not stay lit, then the only thing left is the combination safety gas valve. Combination Safety Gas Valve. Gas valve? That’s the metal box with the control knobs on it. The control valve is responsible for releasing gas and turning it off when the pilot light is out. Atwood 91602 Robertshaw Thermostat with a Three Eight Inch NPT inlet and with a Three Eight NPT Outlet Water Heater Robertshaw Thermostat (3/8" NPT inlet, 3/8" NPT outlet), Will Work on Pilot Models:. press a manual press bypass valve, and app!y ignition. Others use a device to produce a spark to ignite the pilot, which produces heat that opens a valve, allowing gas to flow to the burner for ignition. If you have a Robertshaw gas valve then there is a big flat blade screw which you remove and then under it is the pilot adjustment and that is a smaller sewing machine size flat blade screw. If the pilot does not light, wait 5 minutes and try again. Remove that screw. Not all require the owner light the pilot manually. Most gas control valves will have a screw that will adjust the flow of gas to the pilot light assembly. I have a Robertshaw gas valve model DO. Manifold—a continually pressurized pipe distributing gas to top burner valves and oven thermostat. If the thermocouple is defective, it will not sense the flame and the gas valve will not receive the proper voltage signal to keep gas flowing to the pilot assembly. OPERATING, smell all around the. Natural Gas or 11" LP Convertible Pressure Regulation. May not look anything like your old gas valve. These valves may potentially result in gas leakage and should be replaced. Where the tube joins the other valves, you will probably see an adjustment screw. If resistance is outside of specifications listed, the gas valve must be replaced. The pilot lights … read more. I have removed the pilot sensor from the gas valve (and the safety cutout lead which is connected to a normally-on switch/thermostat up near the top). Regulated and non-regulated models are available. pilot gas valve is a six function valve incorporating. Pictures are shown below. The Robertshaw 700-059 Gas Valve comes with all the necessary installation parts, manuals and instructions that you will need to convert your direct spark and / or hot surface applications. Also be sure to change your burner orifices when converting. So why would the pilot light be lit if the gas line shut off valve is in the closed position? Only thing I can think of is that the shut off valve is faulty and is not doing a proper job of shutting off the gas in the line. Their TS-11 Thermomagnetic Safety Valve is found on many boats equipped with galleys and gas stoves or ovens. Thermomagnetic Safety Valves. I have a Robertshaw gas valve model DO. How to adjust gerber pilot valve 99-646 [ 0 Answers ] I recently moved into a house that has a toilet with a gerber pilot valve 99-646. These valves automatically control main gas flow. Order Robertshaw Gas Valve, NG/LP, Standing Pilot, 24V, NG 3. Millivolt gas. That screw needs to be removed & the pilot adjustment screw is located behind the one you removed. The heat from the pilot flame causes a current flow in the thermocouple that energizes a solenoid in the gas valve. Good luck. Tags :old furnace pilot light robertshaw gas valve 7000bmvr robertshaw 7000bmvr manual honeywell gas control valve lowes robertshaw gas valve pilot adjustment sit gas valve pilot adjustment rheem water heater parts near me how big should pilot light be coleman 7900 series furnace pilot light gas water heater parts diagram. Pilot stays lit for two weeks then goes out with the thermocouple brand new. The Pilot Flame wont stay on; Cost to replace gas valve thermocouple and pilot assembly for gas boiler; My boiler pilot light continues to go out after having the thermocouple replaced 2 X, and the gas valve as well. Safety shut-off valve (SSOV) - automatically opens and shuts off fuel supply to the pilot burner. The reason for this standard was so that you as a service technician could disconnect the gas valve wires and reconnect them without making a mistake. Includes a manual valve, pilot valve, dual automatic valves, and a main gas pressure regulator. Release the knob. 07 Robertshaw 700-452 120V 1/2" X 3/4" Standing Pilot Natural Gas Valve 240,000 Btu 7000Ber-120. Just above that to the left and right of the large center screw, is a smaller gas line in and out for the pilot light. 4 Re-Calibration of the Robertshaw 110SS Gas Heating Control (see Figure No. The valve just unscrews from the black pipe once every thing else is disconnected. It is available for nearly any application. Check temperature dial setting on combination thermostat/gas valve. When the thermostat signals for gas to be delivered from the gas valve to the burner, it is the standing pilot that ignites the gas flowing to the burners to heat the air in the. If problem persist you will need to replace the thermopile. Remove that screw. Symptom - Intermittent shutdown or main burner will not light with on/off switch. " If the pilot light did not ignite or does not stay lit, then. The Robertshaw 700-059 Gas Valve comes with all the necessary installation parts, manuals and instructions that you will need to convert your direct spark and / or hot surface applications. Hazard: Fire hazard. The solenoid converts electrical energy into mechanical energy which, in turn, opens or closes the valve mechanically. Robertshaw White-Rodgers. Only 1 left in stock - order soon. Honeywell. These valves feature a manual valve (gas cock), an automatic pilot safety valve, inlet/outlet screens, pilot out-let, pilot gas filter and pilot adjustment key. Wall Heater Maintenance How to clean the Vent-Free Wall Heater burners & pilot. MISC Hardware; Gas Springs; Handles. I cannot find instructions for this gas valve. Shipped with USPS Priority Mail. ANSI Certified burners meet codes in most states and have the safety valve attached and tested at the factory. This is a BRAND NEW OEM Intertherm/Nordyne/Miller Mobile Home furnace Gas Valve!. light pilot, prove pilot flame, then open main valve or2. Specifications: Gas Type- Natural Gas, with LP conversion. If pilot gas pressure is too high, gas will sputter past the ignition electrode, and may not ignite. I went to a Robertshaw 715U Intermittent Pilot ignition module and Robertshaw 720IPER which has valves for pilot and main. What is a gas furnace pilot light? A pilot light is a small, continuously burning flame that is used to ignite the burners in older gas furnaces. Voltage drop across the switch terminals Burner on: 35 mv or less. This includes the gas valve. Refer to manufacturer’s lighting instructions Duct Furnaces and plunger not depressed on serial plate and relight pilot. Shut off the gas valve and power for the furnace. Step One: Use the manual control handle on the automatic gas valve to turn off the gas to the main burner and pilot. When working properly, the pilot light will hit the thermocouple rod which generates a small electrical current to keep the gas valve open. Robert Shaw MFG. If it remains lit, press the valve knob in slightly. including dual valve (six. Step 1 - Check for Coil Burnout. Standing Pilot Gas Valve. This can make a dramatic difference to the heat given off by the pilot light assembly. Symptom - Intermittent shutdown or main burner will not light with on/off switch. A recent revision in the standards “miswiring requirements for gas valves” was effective January 1, 1996. When this happens, the flame’s oxygen supply will be restricted. Set meter to MV or Volts DC. If the pilot light goes out, the gas valve could stick in an open position, permitting gas to continue to flow some places it retails for $232. The reason for this standard was so that you as a service technician could disconnect the gas valve wires and reconnect them without making a mistake. If the thermocouple is defective, it will not sense the flame and the gas valve will not receive the proper voltage signal to keep gas flowing to the pilot assembly. Next move the knob to the "ON" position. Look at the red button on your current valve. We’re also offering Robertshaw pilot generators and low profile gas heating valves to repair existing heaters. be used to replace most constant pilot valves,. If pilot gas pressure is too high, gas will sputter past the ignition electrode, and may not ignite. May not look anything like your old gas valve. This is one of the reasons a pilot might not stay on. It is made of a small rod and copper wire and serves as a safety device to turn off the gas when a problem appears. Gas: When you prepare to light the pilot, you are instructed to turn the gas control knob to the pilot position and depress the gas control knob (Reset button on Robertshaw Gas Valves).