Question about Goodman GMS90703BXA Heater
My furnace induction motor start for a few seconds then blows the 3amp fuse on the board. If I unplug the pressure switch the induction fan will run, the fuse will not blow and of course the furnace will not ignite. After a while the furnace will eventualy start, run and provide heat. My unit is a Goodman GMNT 120-5
It sounds like you have an obstruction in the exhaust vent. Thats why when you bybass the pressure switch it runs ok. Steve
Posted on Dec 21, 2008
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Posted on Jan 02, 2017
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