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Question About Goodman Mfg Furnace AMV8
led on circuit board of GMP100-4...

furnace won't fire and LED is flashing 4 times indicating a blockage or fan problem. This is seems to check out ok but the furnace still won't fire. I still have 4 flashes. What else could be preventing it from firing? Also when a prblem is resolved is there a reset of some type?

Asked by David on 01/29/2010 2  Answers

ManualsOnline posted an answer 14 years, 8 months ago

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

James Dail posted an answer 14 years, 8 months ago

0 You are likely having the following condition(s) from most likely to least common: 1. Rubber tube between the pressure switch and draft housing is restricted or loose 2. Pressure switch is faulty (Test with-out vacuum s/b open, s/b closed with vacuum) 3. Draft motor is faulty (Worn bearings will cause weak draft) Send me your email if you need additional details. We are limited to 512 characters on this post.
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