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.
Honeywell water heater gas valve reset.
After resetting it several times and bypassing the thermal switch i noticed.
Allow the appliance to run through one complete cycle to ensure that the controls are functioning in the correct manner.
The wt8840 series is the water heater control for trade use to replace wv8840 valves used in aosmith and bradford white water heaters.
8 reset gas valve this will only appear after the gas valve has been shutoff and continues to produce a current to the thermopile.
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.
Set your thermostat to under the room s current temperature and let at least one minute pass to allow the appliance to attempt to get fuel.
Reverse the above steps to mount the new front onto the old back that s still hooked to the water heater.
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.
If the pilot remains lit you will need to replace the gas control valve.
Had to fix a water heater that had the honeywell 5 blinks of death error code.
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.
If it fires it is working correctly.
I checked that ao smith gas water heater in the laundry room right away.
Slide the ribbon of wires out of the clip on the housing and the front of the gas valve is free.
Rheem honeywell water heater gas valve 7 blinks flammable vapor sensor locked out won t reset.
It is designed for use in standing pilot applications using an immersion well for water temperature sensing.
The water heater s gas valve is located near the bottom of the unit and connects to your home s natural gas line.
Turn the gas control dial to off and let sit for one minute.
Keep track of which front is which.