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Centrifugal Switch Stuck
Posted: Wed Oct 26, 2011 3:54 pm
by micki310
Hi there: I have a Coleman Furnace Model DGAT056BDD that has a green flashing light saying the centrifugal switch is stuck...How the heck do I "unstick" it? The air conditioning part of it was working just fine all summer, but when I went to turn the heat on, nothing happened. Please help, I'm a grandma with grandkids here and I need heat for them, it's getting cold. Thanks so much.
Re: Centrifugal Switch Stuck
Posted: Wed Oct 26, 2011 6:38 pm
by Greg
I'll move this to the Coleman heating section.
Re: Centrifugal Switch Stuck
Posted: Tue Nov 01, 2011 7:08 am
by Mark
Hi,
The centrifugal switch is built into the booster motor. Once it sticks you have to replace the motor. Part number for your furnace is 7990-317P/A, which you can see and order here:
http://www.aberdeenhomerepair.com/store ... ster-motor
Thanks,
Mark
Re: Centrifugal Switch Stuck
Posted: Sun Nov 13, 2011 9:20 am
by Goldwinger07
I too am having this very same issue and I have already replaced booster motor but the green light is still flashing twice. Could someone give me some direction into to what to be looking for now ?
Thanks
Randy
Re: Centrifugal Switch Stuck
Posted: Thu Nov 17, 2011 11:57 am
by Mark
Randy,
In your case perhaps the centrifugal switch is doing it's job? Could be a sign of something plugging the airways, a problem with the chimney or perhaps even a cracked heat exchanger. Clean and check everything.
Also be sure your blower wheel is tight on the booster motor.
Mark