Old Wall Furnace


Old 11-05-02, 03:57 PM
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Question Old Wall Furnace

I have a VERY old wall furnace. The gas line had a bit of air in it when we first lit the pilot. It stayed on for over 24 hours, but now I cannot get the pilot to stay lit. I do not even know the first place to start. Should I contract this repiar out - or just buy a new one? Or is this something I can fix?
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Old 11-05-02, 06:00 PM
hvac4u's Avatar
Join Date: Aug 2001
Location: NW atlanta
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if it has a thermocouple

for a couple of bucks (4 or 5) i would replace it first. this sits in the pilot flame and generates a millivolt current back to the gas valve, which pulls in a magnet that holds open the pilot valve. this must be satisfied before the main valve will open. VERY common problem. if this does not work, valve may be bad, may need a pro.
Old 11-08-02, 07:00 PM
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Location: Oklahoma City
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Lightbulb Plugged pilot orfice

Another common problem is the pilot orfice gets plugged up with gunk.
Does the pilot light but won't stay lit ??
Does it not light at all ?

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