Question about Amana Heating & Cooling

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I have 15 year old Amana horisontal furnace model gsc075a30a. it was working fine till the exhaust fan cracked and needed replacing. I have done that and the fan works good but I had to bypass the pressure switch witch is not engaging. can't seem to find a replacement switch. Any suggestions?? Regards Jack

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  • gcbspoke Jan 17, 2009

    We have the same furnace. Just recently replaced the inducer motor blower. There was water also found in the pressure switch tube that would stop the furnace. We had someone come out and put the pressure switch higher and it was working fine, until today. You can hear the blower motor running, but nothing is moving and furnace wont click on. Any suggestions, does this have to do with the pressure switch too?

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If there are markings on the pressure switch as to what pressure it closes at, you may be able to substitute another brand pressure switch. Amana is made by Goodman. Maybe you can cross reference the switch with a Goodman distributor. Try Amana parts at 1-407-699-5411.

Posted on Nov 28, 2008

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You are correct. If the inducer motor is warm, but not running, it has seized up. If you replace this yourself, I also suggest that when you replace the inducer fan, check to make sure the secondary heat exchanger isn't clogged, or the condensate drain(s). If you have an HVAC contractor replace it, he should do this for you. It shouldn't run more than $350, to have it replaced and he can check for clogs (The price I'm quoting is for standard hours).

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