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Furnace blower runs after temp is reached

After reaching the set thermostat level, my furnace switches to a "fan" setting and blows cold air. Goodman brochure says "Low constant fan allows homeowner to activate the low heat speed to efficiently circulate air throughout the home." It is quite uncomfortable for cold air to be circulated once the thermostat has reached the set temp. I sure would like to DE-activate this option. Possible?

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  • Heating & Co... Master
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Is your tstat fan selector in auto?? Does the fan ever shut off?

Posted on Jul 18, 2017

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Posted on Jan 02, 2017

Therinnaiguy
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SOURCE: BLOWER CONTINUES TO BLOW COLD AIR AFTER REACHING DESIRED TEMP.

There is a little switch on the circuit board. Look closely at the wiring diagram and it will indicate which switch to adjust. If not, review the operating manual for details.

Posted on Nov 25, 2008

mrgrzz
  • 88 Answers

SOURCE: furnace blower not working how it should

first off buy yourself a honeywell stat, in my personal opinion lux stats are garbage, I have run into so many that are bad stats !!! but as far as your fan not shuting down, sounds to me like your fan center on your circuit board is bad and will not shut down the fan when needed, you will have to replace the circuit board, as the fan center is a part of the whole of the circuit board, hope that helps

Posted on Jan 20, 2009

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Furnace blower not working how it should


first off buy yourself a honeywell stat, in my personal opinion lux stats are garbage, I have run into so many that are bad stats !!! but as far as your fan not shuting down, sounds to me like your fan center on your circuit board is bad and will not shut down the fan when needed, you will have to replace the circuit board, as the fan center is a part of the whole of the circuit board, hope that helps

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