Heater does not stay on
#1
10-09-00, 06:17 AM
After the pilot has been lit, and the wall thermostat turned on, the heater turns on for a few seconds and then shuts off, including the pilot light. My wall thermostat is only a year old, the box on the heater is about 3-4 years old. All of my connections are tight. Could the problem be a defective thermocouple? If not this, then what?
#3
10-09-00, 03:29 PM
Hi D:
You have a standing pilot that you manually lite? Is this correct? When the burner goes off, does the 24 volts to the gas valve terminals stay steady or is it interrupted? If it's interrupted, you may have a bad limit switch. Try the thermocouple first since it's cheap, but don't be surprised if it doesn't solve the problem. Thanks. John.
You have a standing pilot that you manually lite? Is this correct? When the burner goes off, does the 24 volts to the gas valve terminals stay steady or is it interrupted? If it's interrupted, you may have a bad limit switch. Try the thermocouple first since it's cheap, but don't be surprised if it doesn't solve the problem. Thanks. John.
