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Question About American Standard Furnace add040c924f3
I have an american standard 80 single stage . It w...

I have an american standard 80 single stage . It was flashing 3 light replaced pressure switch with new one. Same problem 3 flashing light . Goes on and off no heat.

Asked by Anthony castillo on 12/15/2013 1  Answer

ManualsOnline posted an answer 10 years, 10 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

Rewarder User posted an answer 10 years, 7 months ago

5 Check all the drain hoses and blow them out, that is the most common cause of a pressure switch to trip, also check all vent pipes to ensure there is no blockage in the vent pipes as this will cause that as well. Hope this helps.
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