Blower Turns On Then Off When A/C And Heat Are Both Off. - HVAC - DIY Chatroom Home Improvement Forum


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Old 10-28-2010, 09:57 AM   #1
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Blower turns on then off when A/C and Heat are both off.


I have the ComfortMaker N8MPN

the AC is off
the heat is off
the fan is set to Auto

the blower cycles on for 5 seconds or so then cycles off and the blink codes come out at 5.

Blink code 5 says: Flame sense out of sequence.

I have my ideas of what is wrong but I'm looking for feedback on what the problem might be.

Gas Furnace

the unit is about 4 years old.

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Last edited by spellow; 10-28-2010 at 10:52 AM.
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