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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Gph1336h21ae unit,blower motor has only one speed,even after

Customer Question

gph1336h21ae unit,blower motor has only one speed,even after changing Highspeed black wire,to red,or speed only.unit was in a flood no rust to be seen,motor runs quiet.Thanks
Submitted: 2 years ago.
Category: HVAC
Customer: replied 2 years ago.
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Customer: replied 2 years ago.
It is a Goodman unit 4years old
Expert:  airheatman replied 2 years ago.
Skip do you have an amp meter to see if we draw different amps on the motor in different speeds?
Customer: replied 1 year ago.
Mine is only good to 10 amps,and no matter what speed wire I change on the board fan blows but not moving air.ducts are clear intake exhast.I remember when I installed it the blower fan sucked the outer shell casing so tight with anchor screws out you couldnt pry it off with the blower running
Expert:  airheatman replied 1 year ago.
Sounds like you may have a bad motor if not changing speeds.The board supplies same voltage to each speed wire so we know board is doing its job