Wall Mount Gas Heater Keeps Shutting Off

There could a fault in the gas valve s main burner solenoid causing it to draw excessive power and starving the pilot flame solenoid.

Wall mount gas heater keeps shutting off.

Inspect the thermocouple to determine if it is dirty or damaged in some way. If you re sure there is gas the pilot aperture may be blocked. This also needs to be cleaned out. We have a gas wall heater and we have been having episodes typically at night where the thermostat shows the temperature is below the desired temperature and the unit ignites turns on and runs for a couple minutes and then shuts off for about 30 45 seconds then turns on again runs for a couple minutes and then turns off again.

Troubleshooting a home gas heater. The fan limit switch is actually two switches in one body the fan switch and a limit switch. We have a williams top vent gas fired wall furnace that won t run properly. If you open and close the door at the bottom it will usually start up again.

As i said this is on my blue flame wall heater. If so replace the entire valve. If your gas water heater keeps shutting off the thermocouple could be dirty bent or damaged. When properly installed propane and natural gas wall and room heaters provide trouble free comfort and when they do malfunction the problem is usually easy to.

Gas wall heater turning on and off. It should be parallel to the pipe. Even if we turn the thermostat all the way up the heater will fire up and shut off irregularly. I am sure the thermostat is out of whack but that really isn t the problem.

Yours may be different. If there is or your heater runs on natural gas check the handle on the gas line. When the main burner shuts off either because of the thermostat s action or because of a cool thermocouple due to the sputtering pilot flame the heater may remain in the off condition depending on whether the pilot light happens to be extinguished when the burner cuts off. There is a vent hole in that nozzle on the side that gets clogged.

If it is dirty turn off the gas to allow the thermocouple to cool. This device is placed so that it senses. Older model units have a device called the fan limit switch. This needs to be removed and blown out with compressed air.