Question about Goodman GMS90703BXA Heater
I just flipped thermostat switch to heat and reset the weekly settings, with thermostat on auto, the fan comes on but the furnace doesn't ignite. I checked the furnace ,the light was blinking 3 times.I did a shutdown and startup procedure but still have the same results.
Ok, you either have a inducer fan issue or a pressure switch issue or a plugged vent pipe. The inducer turns on to establish a draft for the exhaust. If it is not working you will get this error code. If the pressure switch does not sense pressure caused by the inducer, it will give this code. If either the intake pipe or exhaust pipe is blocked (even y just a little) it will give you the same error code. If the condensate hose or receptical is plugged, again it will give you this error code. Good Luck!
Posted on Oct 21, 2008
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