Coleman Presidential Furnace

Questions about repairs and parts for Coleman furnaces, air conditioners and heat pumps for manufactured homes. Click here for Coleman parts.

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jford89

My furnace is model # 7995-656/D
When the furnace is off there is a constant humming noise.
When I turn the fan switch off it goes away.
The furnace also has very short cycles, and when the cycle ends
after about a minute the blower starts back up for about 45 seconds to a minute. Any help would be appreciated. The anticipator setting is at .2
Thanks, jford
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Robert
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Posts: 6413
Joined: Wed Feb 28, 2007 12:07 am
Location: Tennessee

You'll have to open control box and try to determine exactly where it is coming from.


Look in your owners manual or on the gas valve itself or on the data sticker on furnace for the correct heat anticipator setting.


Make sure filter is clean and also a-coil if you have a/c.



Thanks,
Robert
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?
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jford89

What would I be looking for? A transformer or something similar.
Thanks again
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hvac1000
Posts: 292
Joined: Wed Feb 28, 2007 9:19 am
Location: Cincinnati ohio

Usually the transformer makes that jind of noise. It is common.
God, grant me the serenity
to accept the things I cannot change;
the courage to change the things I can;
and the wisdom to know the difference.
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