the electric ignitor glows but i have no heat flames in my furnace. minutes later the fan turns on blowing cold air. what am i looking at for repair options if this isnt something i can fix on my own?
Anonymous
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Before you do ANYTHING else, be sure the gas is turned on to your furnace! It could be as simple as that.
If that's not it, your thermocoupler may be shot. The intial heat keeps it open; it's a safety mechanism so that when the heat goes off, the gas stops, just in case it gets blown out. That being said, you might be able to replace it, IF that's the problem. If in doubt, however, call a qualified repairman.
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my honeywell furnace electric ignites but the gas does not start a minutes later the fan turns on but no heat?
the electric ignitor glows but i have no heat flames in my furnace. minutes later the fan turns on blowing cold air. what am i looking at for repair options if this isnt something i can fix on my own?
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Honeywell Furnace
Anonymous
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if the pilot is on with no main gas it sounds like its the thermocouple at the pilot. if it isn't hot enough it will not allow the main gas valve to open. sometimes the thermocouple will get covered with the white powder residue from the gas burning on it and insulates the thermo against the heat of the pilot. Clean off the thermo with steel wool or fine sandpaper. also clean the pilot burner, it too gets clogged with the powder residue and will not be a big enough flame to heat the thermo. check and make sure the pilot is burning right on the thermo. if these look good its probably a bad thermo. Theres usually one small bolt and nut that holds it on the pilot light bracket. they usually just plug into the gas valve, take it with you to the furnace parts store, they are interchangeable with other models. they'll fix you up.
Anonymous
Often at start up in the fall the gas valve will stick shut from sitting, wait for igniter to start glowing use the HANDEL of a hammer and rap that gas valve wake it up ,time to get back to work. if it still does not work,shut off power (light switch on side of furnace) clean shiny metal mirror next to igniter, there is a safety that senses the igniter is working before allowing main gas valve to open