We are having a power outage in much of Los Angeles right now, big storm (02/17/17 3:55PM). I have a gas wall heater, pilot is lit, but no power to the wall thermostat. Can I turn on the unit manually to get heat?
Electrical – Turn on gas wall heater w/o electric thermostat
electricalheatinghvac
Best Answer
When you have time, do this to trouble shoot this heater. This gas valve is powered by a pilot generator. If you have a volt meter follow the 2 wires from the pilot to where they connect. check the output voltage on these wires. The voltage should be about 3/4 volts DC. If you get the 3/4 volts dc, disconnect the wires. Did the pilot go out? If it did relight the pilot. this proves that the pilot generator is working. Next, if the gas valve does not click when the thermostat is turned up and down, put a jumper wire on the control circuit. If the gas valve clicks the problem is in the control circuit. You stated earlier that the gas valve clicked when you jumped out the control circuit. If the valve clicked but the gas did not light, you may have a spider web in the orfice of the gas input line at the burner. You will need to take out the burner remove the gas orfice from the gas pipe at the burner and clean it out. reassembly and retry the heater. Spiders in gas orfices are rare but they do happen. I know I have cleaned out a few. They crawl in when the heater is off for an extended period of time.