0000034510 00000 n 0000011045 00000 n If any particular ad is your REASON for blocking ads, please let us know. 0000011989 00000 n Connect control circuit to gas control terminals. Also found in certain gas space heaters and construction-site portable heaters. 0000062506 00000 n If desired outlet pressure or flow rate cannot be achieved by adjusting the gas control, check the inlet pressure using a manometer at the inlet pressure tap or upstream of the gas control. DO NOT JUMPER THESE TERMINALS. The Robertshaw - Uni-Line 700-500 and 710-500 Series millivolt gas valves are thermostatically actuated com- bination gas valves. Check the power unit resistance. 0000002758 00000 n Mutually exclusive execution using std::atomic? With the main burner in operation, paint all pipe joints (including adapters) and gas control inlet and outlet with rich soap and water solution. Remove the burner access panel if provided on your appliance. Zero clearance sleeve is only required for combustible walls. Why isn't the spark gap lighting the pilot on my furnace? Attempt to light pilot burner flame following procedures in the Light the Pilot Burner Flame section. a. Remove the regulator cap screw and pressure regulator adjusting screw. Home Honeywell Honeywell VR8200, VR4200 Combination Gas Controls User Guide. If it is re-energized within 60 seconds, it may bypass or shorten the length of the low-pressure step. THIS SHORTS VALVE COIL AND MAY BURN OUT THE ANTICIPATOR IN THE THERMOSTAT. Install ThermocoupleThe Q340A Thermocouple (with adapters) is provided with SUPER TRADELINE models of the VR8200A. This product was the perfect replacement for the Honeywell thermopile in a circa 1975 gas fireplace unit. It is no longer manufactured Pressure Switch Installation Addendum, Gas Detection Quick Reference GuideHoneywell BW Solo Portable Single gas Detector 2020, Oct 23 G05-4001-000-RevC Overview Contact, RYOBI RY802925 PSI Gas Pressure Washer WARNING: This Quick Reference Guide is not a substitute for reading the, KitchenAid Gas Range User Manual - Optimized PDF KitchenAid Gas Range User Manual - Original PDF, Your email address will not be published. 10 Easy Things to Check When Troubleshooting a Furnace Gas Valve. 9. For the battery test above only connect the battery for a second or two just to see if the gas valve works. Insert and tighten the screws provided with the flange. If it fires, it is working correctly. Draw yourself the circuit. 0000057714 00000 n Models for natural or LP gas. 0000055306 00000 n If your gas supplier cannot be reached, call the fire department. Cycle the main burner several times, allowing at least 30 seconds between cycles for the regulator to resume the step function. Then the regulator valve is forced fully open by the timing diaphragm, which is operated by bleed gas. hW[o8+ID:BZ(gENRCD'$( m;\{fgc3llFQl%|xI!>-88zzhb|AtJOr[b4-BFS! Gas valves are not serviceable; the following are simple troubleshooting and description of how gas valves operate. For a better experience, please enable JavaScript in your browser before proceeding. Capacity rated at 130 feet 3 /hour at 1-inch WC pressure drop [3.7 m 3 /hr at 0.25 kPa]. Your local Honeywell Residential and Building Controls Sales Office (check white pages of your phone directory). Do not use a gas control set for natural gas on an LP gas system or a gas control set for LP gas on a natural gas system. After the adapter is installed, the gas control is attached to the adapter as outlined above. 0000023590 00000 n The second automatic valve diaphragm, controlled by the servo pressure regulator, opens and adjusts gas flow as long as the system is powered and the pilot is burning. PERFORM GAS LEAK TEST WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH.Check for gas leaks with rich soap and water solution any time work is done on a gas control. This is a legacy product document supported by Resideo.This product is no longer manufactured. This decreases gas pressure under the second automatic valve diaphragm and repositions the valve disc further from the seat. . IMPORTANT: These gas controls are shipped with protective seals over inlet and outlet tappings. WARNINGFIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. 0 I go over what to do if you are not receiving the correct voltages. The pilot works fine but the main burner does not come on by the wall mounted thermostat or the manual on/off switch. 0000072676 00000 n Required fields are marked *. They include a safety shutoff, a manual valve, two automatic operators, a pressure regulator, a pilot adjustment, and a conduit cover (VR4200 only). If: Measure the open and closed thermocouple output voltages and compare to the acceptable range charts in the thermocouple specifications or in the Gas Controls Handbook. 0000002780 00000 n 0000126162 00000 n 0000006449 00000 n 0000001836 00000 n - Reg. Order number, SUPER TRADELINE or TRADELINE if desired. Connect the pipe to gas control inlet and outlet. TABLE 6MAXIMUM LENGTH OF SUPPLEMENTARY LIMIT LEADWIRES WHEN USING Q309A THERMOCOUPLE. 0000010874 00000 n 0000010088 00000 n 0000006141 00000 n 1/2 in. Category: HVAC. Mount the gas control so gas flow is in the direction of the arrow on the bottom of the gas control. Most common. I would recommend replacing all the wiring and controls and the pilot generator. Wiring terminal block color-coded beige to identify standing pilot models. Where these instructions differ from the appliance manufacturer, follow the appliance manufacturer instructions.All wiring including 1/4 in. GAS CONTROL KNOB SETTINGSThe gas control knob has three settings:OFF: Prevents pilot and main burner gas flow.PILOT: Permits pilot gas flow only. 0 F to +175 F [-18 C to +79 C] temperature range standard; -40 F to +175 F [-40 C to 79 C] available. Take care when handling the refractory panels as they are fragile until held in place and supported. The servo pressure regulator monitors outlet pressure to provide n even the main burner gas flow. Helping You to Do It Yourself! IMPORTANT: The specifications given in this publication do not include normal manufacturing tolerances. The PILOT position allows pilot burner gas flow only. millivoltage automatic valve operator, and optional gas pressure regulator. %PDF-1.3 % Fig. Apply a moderate amount of good quality pipe compound (Do not use Teflon tape) to pipe only, leaving two end threads bare. Refer to Fig. Is it possible to rotate a window 90 degrees if it has the same length and width? 0000004421 00000 n wc [0.9 kPa] outlet pressure). hb``Pc`` _Ps400! Adjust the thermostat several degrees above room temperature. Good reading is 0 to 0.2 Ohms . Do not bend pilot tubing at gas control or pilot burner after compression fitting has been tightened, or gas leakage at the connection may result. . This wiring should reduce to a simple series circuit: a gas valve coil in series with a thermopile in series with a t'stat with normally open contacts in series with a limit switch with normally closed contacts. This category contains Honeywell SmartValve, Gas Controls, Millivolts, Pressure Regulators, Gas Control Parts and Industrial Gas Valves. Advertisement Jimbo, Thanks for that tip. Thanks. the manual gas control knob is in the ON position. . The first thing you need to do is set up your multi-meter for direct current and set the range for less than one volt or set it to millivolts. A stuck valve could release gas into the air without regulation or the valve could cause the unit not to fire up at all. Bashing my head against the walls in some of the internet's finest chat rooms. As for the gas valve it is probably a "general controls" valve but any 800 millivolt gas valve can be used as a replacement. This is How to Wire the Thermopile to The 750mv Gas Valve for the Pilot and Main Gas Burners. CHECK SAFETY SHUTDOWN PERFORMANCEWARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH.Perform the safety shutdown test any time work is done on a gas system. Prices are the same as normal- https://www.amazon.com/shop/acservicetech If the pilot flame is engulfing the thermopile and you are not getting enough voltage to open the main gas valve then the thermopile may need to be replaced.Supervision is needed by a licensed HVAC Tech while doing this as Experience and Apprenticeship garners Wisdom and Safety.We've Partnered with TruTechTools.com! Honeywell Gas Valve Code 5 Whirlpool Water Heater Flammable Vapor Sensor Lockout How To Reset Honeywell Water Heater Pilot Keeps Going out - CLEAN THE FILTER GRATE! 0000019920 00000 n 0000031335 00000 n The gas control knob is hard to turn or push down, or it fails to pop back up when released. Minimum regulated capacity is 20 feet 3 /hour [0.6 meters 3 /hour]. Good info, thanks! Set the thermostat to the lowest setting and shut off the electric power to the appliance. 0000004324 00000 n This includes a WIRING DIAGRAM. Check if gas is flowing if you turn on the gas and the pilot burner doesn't light. 0000027369 00000 n You are using an out of date browser. Cover gas control if the appliance is cleaned with water, steam, or chemicals to avoid dust and grease accumulation. I think I've had a service call on every millivolt system in my rentals.----I am debugging a Monessen millivolt gas valve. When purchasing replacement and modernization products from your TRADELINE wholesaler or your distributor, refer to the price sheets for complete ordering number, or specify. If outlet pressure begins to rise, the pressure regulator the diaphragm moves slightly higher, allowing less gas flow to the gas control outlet. SUPER TRADELINE MODELSSUPER TRADELINE controls offer features not avail- able on TRADELINE or standard models, and are designed to replace a wide range of Honeywell and competitive controls.SUPER TRADELINE model specifications are the same as those of standard models except as noted below.SUPER TRADELINE MODEL AVAILABLE: VR8200A Continuous Pilot Dual Automatic Combination Gas Control. I was just wondering about this the other day. honeywell millivolt gas valve troubleshooting From Gas Control Valve 1- Turn main gas on and proceed to next step. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. 0000036872 00000 n Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). Troubleshooting the valve and looking for known common issues will give you peace of mind by ensuring the safe operation of your Honeywell appliance. Run pipe or tubing to the gas control. Intermittent use. I would verify the valve type - It would either be the SIT 820 or the Honeywell VS8420. Insert bushing in gas control and thread pipe carefully into bushing until tight. Proper gas valve adjustment can save your home from a devastating fire. Check the pilot burner flame adjustment. Your email address will not be published. Extinguish pilot flame. The gas control must be manually reset. 0000011088 00000 n Turn the gas control knob (Figs. Push and hold down the red reset button (Figs. I would not work on it, without completely replaceing the gas control system, and the furnace may not be worth that expense. Install the Q340A asfollows: Connect ThermocoupleConnect thermocouple lead as shown in Fig. Maintenance frequency must be determined individually for each application. Appliances that may cycle 120,000 times annually should be checked monthly. Water heater won't light? Since these environments can cause the gas control to deteriorate more rapidly, the system should e checked more often. Works with the majority of millivolt gas valves; Push-in clip for easy installation included; . Compare it to the acceptable range charts in the thermocouple specifications or in the Gas Controls Handbook. Carefully check the main burner light off at the step pressure. Mount the gas control 0-90 degrees, in any direction, from the upright position of the gas control knob, including vertically. In the "Resources for understanding gas valves" thread in the HVAC forum, someone wanted to know how a gas valve worked. Because gas is involved, problems with gas valves are a major safety concern. 250 items. Tighten only 1/4 turn beyond finger tight to give good electrical continuity. 0000003926 00000 n 4. Force or attempted repair can result in fire or explosion. INSTRUCTIONS TO THE HOMEOWNER FOR YOUR SAFETY, READ BEFORE OPERATING WARNING!IF YOU DO NOT FOLLOW THE WARNINGS BELOW AND THE LIGHTING INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION CAN RESULT WITH PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE. Models for natural or LPgas.ADDITIONAL FEATURES: STANDARD MODELSMODEL: VR8200 and VR4200 Continuous Pilot Dual Automatic Valve Combination Gas Controls. The second automatic valve operator is de- energized, closing the channel to the pressure regulator, and opening a channel to the underside of the second automatic valve diaphragm. 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Place gas control knob in PILOT position. ny outlet pressure change is immediately reflected back to the pressure regulator diaphragm, which repositions to change the flow rate through the regulator valve and, thus, through the diaphragm-operated automatic valve. When the ow pressure regulator is fully open, the high-pressure regulator maintains the desired full-rate outlet pressure as described for the standard regulator.The step model requires approximately 60 seconds to reset once the main burner goes off. This type of gas valve used a single thermocouple. Follow these warnings exactly: CAUTIONNever apply a jumper across or short the valve coil terminals. Oa$2vlmmpTx{>z)~pc|N*ona0 It only takes a minute to sign up. Use new, properly reamed pipe free from chips. 0000016758 00000 n Tis the season. Assure the gas control knob is in the ON position. 0000001377 00000 n Disconnect power supply before wiring to prevent electrical shock or equipment damage. Gas valves nowadays are one piece with 100% shutoff for the pilot flame gas and shutoff valve etc all in one valve. The three-position manual gas control knob has ON, OFF, and PILOT positions. I hope you enjoy and find them very beneficial! 0000023567 00000 n There must be two terminals in this connector block that powers the gas valve coil. If an adapter is used, place the wrench on the adapter rather than on gas control. A. Thermocouple-Only: Found in: Most gas log sets with standard safety pilot knob control. Standard Opening Pressure Regulation (VR8200A,M, and VR4200A, M)During the ON cycle, the servo pressure regulator provides close control of outlet pressure, even if inlet pressure and flow rate vary widely. Safety shutoff or pilot gas proves complete shutdown since the safety shutoff valve permits main burner and pilot gas flow. Your Purchases through Amazon provide a means for channels such as mine to earn advertising fees from any purchases after clicking through. 0000001116 00000 n If the gas control knob or reset button will not operate by hand, or if the reset button stays depressed after it is released, the gas control should be replaced by a qualified service technician. If the O-ring is not attached or is missing, do not use the flange. Capacity is based on 1000 Btu/feet 3, 0.64 specific gravity natural gas at 1-inch water column pressure drop [37.3 MJ/meters 3, 0.64 specific gravity natural gas at 0.25 kPa pressure drop].The maximum regulated capacity is 200 feet 3 /hour [5.7 meters 3 /hour]. CAUTION!Do not apply a jumper across or short the valve coil terminals. WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. How do you ensure that a red herring doesn't violate Chekhov's gun? Read these instructions carefully. Furnace gas valves cannot be repaired. 1/4-inch male quick-connect terminals for electrical connections. Terminal block color-coded beige.THERMOSTAT HEAT ANTICIPATOR SETTING:VR4200: 0.1AVR8200: 0.5ATYPE OF GAS: VR8200 and VR4200 set up for naturalgas includes a 393691 LP Conversion Kit. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. To avoid the dangerous accumulation of fuel gas, turn off the gas supply at the appliance service valve before starting the installation, and perform Gas Leak Test after completion of installation. If necessary, adjust the pressure regulator to match the appliance rating. 0000072700 00000 n The first automatic valve is closed. 0000017061 00000 n TABLE 7PRESSURE REGULATOR SPECIFICATION PRESSURES IN INCHES WC. Tubing installation must comply with approved standards and practices. It has been obsolete for over 30 yrs now. Thanks. Use conversion factors in Table 2 to convert to capacities for other gases. 0000139215 00000 n Adjust the thermostat several degrees higher than your current room temperature. 0000016105 00000 n EASY FIXES! Yes, this shows the pilot gen. in series with the limit switch in series with the t'stat. *If higher than 35mv check connections and switch. hb``b``r` LT, bBPQ%@AL;LiaP2l3 2 Such heavy cycling wears out the gas control in one to two years. Bubbles indicate a gas leak. Residential and Building Controls Division Customer Satisfaction. 2 and 3. 0000003696 00000 n ECO connector included with some models: also available as an accessory. Loss of power closes the automatic valves, but leaves the pilot lit, ready to return to normal service when power is restored. ADJUST THE PILOT BURNER FLAMEThe pilot flame should envelop 3/8 to 1/2 in. rev2023.3.3.43278. The gas valve part numbe read more A separate reset button must be held down to permit gas flow while lighting the pilot; can be pushed down only in the PILOT position. WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY OR DEATH.Do not disassemble the gas control; it contains no replaceable components. What is a word for the arcane equivalent of a monastery? rating 1/2 psi [3.5 kPa] inlet pressure.PRESSURE REGULATION: See Table 1. JavaScript is disabled. The VR8200 Continuous Pilot Dual Automatic Valve Combination Gas Controls are used in gas-fired, standing pilot appliances. 2. Home and Building ControlHoneywell Inc.1985 Douglas Drive NorthGolden Valley, Minnesota 55422, Home and Building ControlHoneywell LimitedHoneywell Limite740 Ellesmere RoadScarborough, OntarioM1P 2V9, This is a legacy product document supported by Resideo. 0000002201 00000 n Dusty, wet, or corrosive environment. This is an electrical connection and must be clean and dry. And after two or so minutes, the gas chambers will be lit. The power unit drops out, closing the safety valve and stopping all gas flow through the control.With the loss of outlet pressure, the second automatic valve closes and is held closed by spring pressure on the diaphragm. Does that indicate more a gas valve problem or a thermopile generator/pilot flame problem? If the pilot flame goes out, turn the gas control knob clockwise, If the pilot flame remains lit, turn the gas control knob counterclockwise. If the reset button does not pop up when released, stop immediately and call your service technician or gas supplier. Making statements based on opinion; back them up with references or personal experience. Use only your hand to push down the reset button or turn the gas control knob. 0000004689 00000 n https://www.trutechtools.com/?affid=43 Use our Promo Code: \"acservicetech\" for 8% off your order! The VR8200 Continuous Pilot Dual Automatic Valve Combination Gas Controls are used in gas-fired, standing pilot appliances. Gas valve troubleshooting looks for a problem. When Pilot Flame Goes OutWhen the pilot flame goes out or is too small to reliably light the main burner, thermocouple output drops below the power unit hold-in valve. Troubleshooting Honeywell Millivolt Valve, Troubleshooting the Gas Control System, Troubleshooting the Gas Control System, Vermont Castings, Majestic Products: DVR33, SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION Check your instruction manual to determine the voltage that should be running at your control valve circuit. There should not be a flame-up there if the valve is working correctly. 0000041802 00000 n Gas control is a safety device. 0000139520 00000 n TROUBLESHOOTING MILLIVOLT GAS VALVES PART # 023625 (NATURAL) & 023624 (LP) TroubleMillvoltGasV 04/16 . 0000013062 00000 n You should NOT short out the t'stat terminals to check it. Ensure the main burner lights smoothly and without a flashback to the orifice and that all ports remain lit. 0000042992 00000 n View our resources. The best answers are voted up and rise to the top, Not the answer you're looking for? If it isn't flowing, replace the SmartValve. 0000002263 00000 n Circuit Millivolt Check Symptom - Intermittent shutdown or main burner will not light with on/off switch. But it has been reliable for a long time. This material is proprietary to Honeywell Limited and shall not be reproduced, copied or used in any manner without prior written consent of . 0000026083 00000 n Learn more about Stack Overflow the company, and our products. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Do not touch any electrical switch or use the phone. For use in standing pilot appliances. Do not remove the existing window frame assembly. quick-connect terminals, must comply with applicable electrical codes and ordinances.Disconnect power supply before making wiring connections to prevent electrical shock or equipment damage. Supervision is needed by a licensed HVACR Tech while doing this as Experience and Apprenticeship garners Wisdom and Safety.Tool List- https://www.amazon.com/shop/acservicetechSupport- https://www.patreon.com/acservicetechWe've Partnered with TruTechTools.com! Rear V ented Direct V ent Gas Fireplace Model: PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THE APPLIANCE. There must be two terminals in this connector block that powers the gas valve coil. The gas control is likely to have operated for more than 200,000 cycles. Outstanding! I tried that once already, but I won't again. Your problem seems to involve large -- really large -- "industrial size" issues. 10Installing thermocouple to the power unit. Do not thread pipe too far. See Table 3. an Elbow (angle) flange cannot provide a right-hand inlet when the ECO connector is used.NOTE: Flange Kits include one flange with attached O-ring and four mounting screws. Loss of pilot flame or flame too small to reliably light the main burner closes the safety shutoff valve and the second automatic valve. 0000000016 00000 n Vermont Castings, Majestic Products: DVR33, Window Frame Assembly Should be Removed Before Service Work, Troubleshooting Honeywell Millivolt Valve, Homeowner's Installation and Operating Manual. At least having yours done professionally would appear to put you in a position of a tax deduction for repairing it. Thermostat and gas control main burner gas flow.NOTE: Gas controls are shipped with the gas control knob in the ON position. 0000012011 00000 n 6 terminals + 2 jumpers = 4 effective terminals = 4 nodes. Otherwise, take the necessary steps to provide proper gas pressure to the gas control. PRESSURE TAPPING: Inlet and outlet pressure taps accessible from the top of gas control. 0000009803 00000 n Millivolt systems have been the industry standard for decades, and are in some ways simpler to troubleshoot than electronic ignition systems. Gas control operation is described in more detail below.VALVE POSITION DURING THERMOSTAT OFFCYCLEThe valve is positioned as shown in Fig. The rod, which should be cleaned annually, by the way, will heat up and send a millivolt signal down to its ceramic base and on to the control board. Do not overtighten. If you do not smell gas, turn the knob on gas control counterclockwise. Assure the main burner primary air supply is properly adjusted for complete combustion (refer to the appliance manufacturer instructions). If you smell gas, immediately shut off the manual valve in the gas piping to the appliance or, on LP, at the tank. 13. TABLE 8PRESSURE REGULATOR SPECIFICATION PRESSURES IN kPa. Remove the thermopile wiring connector from the gas control. The screw to adjust the pilot gas is a needle valve. Fig. 0000018497 00000 n Set your voltmeter for the proper voltage that is, above 24 volts. Never use any tools. The diaphragm-operated second automatic valve opens under the control of the regulator and closes if gas or power supply is interrupted. 2). I recommend you call a heating expert. ' b1?T3/0.!0s.2c7oDp!c{|87*G2s>y~O9SNF. The main burner gas flow is blocked by both automatic valves. When the pilot goes out or becomes too small to sustain normal ignition. Natural to LP gas conversion kit included with TRADELINE standard and slow-opening models. Do I need a thermal expansion tank if I already have a pressure tank? I have an old millivolt gas furnace that's stopped working. By creating an account you agree to the Hunker, How to Light the Pilot Light on a Honeywell VR8200. Remove the pilot adjustment cover screw. Leave the building and call your gas supplier. SIT 822 Valve with a Honeywell Electronic Igniter NOTE: Remove glass before servicing. to protect them and prevent gas from leaking, and discourage tampering by untrained people. Check the ratings given in the instructions and on the product to ensure the product is suitable for your application. Regulator Cap Conversion Screw Pressure Regulator Housing, Cleaning the Standing Pilot Control System. 0000017038 00000 n CONVERTING BETWEEN NATURAL AND LP GAS WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. 0000066936 00000 n 0000005748 00000 n Hold down the gas control knob about one minute, then release. on Honeywell VR8200, VR4200 Combination Gas Controls User Guide, Honeywell Humidity Controllers User Guide, Honeywell S8910U Universal Hot Surface Ignition Module User Manual. The gas control knob must be held depressed or the thermocouple must be heated sufficiently to hold the safety control valve open.ON: Permits main burner and pilot gas flow. 44 0 obj <>stream 14 when the: The power unit holds the safety shutoff valve disc off its seat, so gas can flow into the control. Thread pipe into gas control. Straight-through body pattern; right-angle adapters available for inlet and outlet. They require the use of a 750 mv Powerpile generator (thermopile). Jumping between the TP/TH and TH does NOT turn the main burner on. For your safety, read the following warnings before lighting the appliance: WARNING: BEFORE DOING ANY GAS CONTROL SERVICE WORK, REMOVE GLASS FRONT. TRADELINE model specifications are the same as those of standard models except as noted below.TRADELINE MODEL AVAILABLE: VR8200A Continuous Pilot Dual Automatic Combination Gas Control. If the knob or reset button will not operate by hand, replace the control using a qualified service technician. See Fig. Thanks for that well-descriptive tips. Hunker may earn compensation through affiliate links in this story. I'm looking for help identifying what model it actually is (so I can search for information specific to it) or ideas on what might be wrong.

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