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My gas furnace stops blowing hot air and then the fan just runs ?

Posted on 2/11/14 at 8:57 pm
Posted by Zilla
Member since Jul 2005
10599 posts
Posted on 2/11/14 at 8:57 pm
Has happened 3 times this year... middle of the night, after having been working fine, it just stops blowing cold air and the fan just runs nonstop...No matter what I do at the thermostat, I can't get the fan to stop...Have to kill the breaker to reset it...what's the deal ?
Posted by tgrbaitn08
Member since Dec 2007
146214 posts
Posted on 2/11/14 at 8:59 pm to
Need new heat strips
Posted by tb.cl_at
Member since Apr 2013
77 posts
Posted on 2/11/14 at 9:05 pm to
Mine did the same thing awhile back. It was the exhaust fan that kept running and wouldn't kick off. I tapped on the relay switch and the fan would stop and the heater would kick back on.
Try that. If it works then you may need to change the motherboard.
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