Older Payne Gas Furnace

Old 09-27-13, 02:09 PM
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Older Payne Gas Furnace

I have an older Payne Gas Furnace (1978). The burners will not ignite.
Central Air works fine as well as the fan.
I have changed the thermocouple, the flame looks good. I have vaccumed and cleaned everything out. All it does is hum. Any Ideas?
Old 09-27-13, 07:45 PM
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Welcome to the forums.

Maybe it forgot the words (sorry....couldn't resist)

Can you leave a model number for that unit. It may be found behind the main access door.
Old 10-02-13, 04:59 PM
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A payne gas furnace from 1978 should not have a thermocouple. What you may have is a Carrier three wire pilot that is lit by a spark each time the thermostat calls for heat.

Take the cover off the furnace. Look for the rating plate which will have the model number on it, and post the model number here.

Have someone turn the thermostat up and carefully observe the sequence of events which occurs. Report that sequence of events here.
Old 10-03-13, 08:05 PM
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Get the heat exchanger checked on that thing before you change any parts - bet you it's cracked after 35 years of use.

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