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M Oglesby
M Oglesby, HVAC Technician
Category: HVAC
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Experience:  Universally Certified HVACR Technician
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Goodman package unit PGB024075-1. Furnace wont fire up. Red

Resolved Question:

Goodman package unit PGB024075-1. Furnace wont fire up. Red light flahes 2 times. I do not have the manual and the diagnostic codes are not on the inside of cover. Where do I start troubleshooting.
Submitted: 2 years ago.
Category: HVAC
Expert:  M Oglesby replied 2 years ago.
The 2 flash led code is pressure switch fails to close. On a call for heat, do the inducer fan motor come on? The inducer fan motor is located inside the furnace cabinet and connected to the flue vent pipes. It has a rubber hose attached to it that connects to a round pressure switch. Let me know if it is coming on or not.
Customer: replied 2 years ago.
Not coming on. Just a couple "clicks".
Expert:  M Oglesby replied 2 years ago.
That sounds like the problem. The inducer fan motor sounds like it has gone bad. Use a volt meter to check to see if it is receiving 120 volts on a call for heat. If it is, and not coming on, then it is bad, if it is not receiving 120 volts, then the control board is bad.

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M Oglesby, HVAC Technician
Category: HVAC
Satisfied Customers: 2038
Experience: Universally Certified HVACR Technician
M Oglesby and 4 other HVAC Specialists are ready to help you
Customer: replied 2 years ago.
I will have to get multimeter back from neighbor. Get back w u tomorrow.
Expert:  M Oglesby replied 2 years ago.
ok Let me know
Customer: replied 2 years ago.
Volt meter showed fan motor should come on. Took it off and dirt gobber mud nest in fan blades! Cleaned it out and everything works. I had ckecked the flue and was clear. Couldn't see this until fan was removed. Thanks for sending me straight to the problem.

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