Honeywell Water Heater Gas Control Valve Reset

Residential standard gas water heater service handbook 7. The water heater s gas valve is located near the bottom of the unit and connects to your home s natural gas line. Assuming you don t have a power vented unit a 7 flash means the gas control valve has failed and needs to be replaced.

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Locate the hot surface igniter and look for a spark or glow there.

Honeywell water heater gas control valve reset.

Basics honeywell gas control valve thermostat. Slide the ribbon of wires out of the clip on the housing and the front of the gas valve is free. The wt8840 series is the water heater control for trade use to replace wv8840 valves used in aosmith and bradford white water heaters. How to fix gas valve or control panel on gas hot water heater honeywell gas valve wv8840b1110 repair and replacement.

Heat on the thermopile generates. After resetting it several times and bypassing the thermal switch i noticed. The honeywell valve uses a thermopile instead of a thermocouple as did previous designs. If you have a power vented unit a 7 flash is a flammable vapor sensor error.

Had to fix a water heater that had the honeywell 5 blinks of death error code. I checked that ao smith gas water heater in the laundry room right away. Turn the water heater s gas valve switch to the off position wait for a few seconds and then flip the switch to the on position to reset the system. Turn off the gas supply valve to your appliance to test whether your valve is capable of shutting down properly.

Water heaters covered by this handbook are equipped with honeywell gas control valve thermostats. 8 reset gas valve this will only appear after the gas valve has been shutoff and continues to produce a current to the thermopile. If the pilot remains lit you will need to replace the gas control valve. If your water heater does not begin working or another lock out condition occurs have a competent hot water heating specialist diagnose the system and make repairs.

Set the thermostat or the device s controller slightly above the current room temperature. Repeat these steps with the new gas valve. You may have to replace the sensor but first you can try a reset by turning the unit off at the switch on the gas valve wait a minute then turn the switch back on. Reverse the above steps to mount the new front onto the old back that s still hooked to the water heater.

Turn the gas control dial to off and let sit for one minute. The water heater comes with a sophisticated advanced honeywell water heater thermostat valve that provides continuous monitoring of the water temperature and turning on and off the gas accordingly all without battery. It is designed for use in standing pilot applications using an immersion well for water temperature sensing. Keep track of which front is which.