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View Full Version : I have Goodman GMP100 furnace. The vent blower won't run


ppgupta
Mar 14, 2010, 04:48 PM
On the Goodman GMP100 furnace, the vent blower tries to run but stops immediately. The status light blinks 3 times. Is there a way to find out if the vent pressure switch is defective?

hvac1000
Mar 15, 2010, 01:00 AM
Test the vent blower.