Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Goodman evaporator coil fan problem !!!!?

I installed a fan motor on my Goodman package unit but the fan turns slowly and in the wrong direction....What did I do wrong ??? There are only three wires to the fan motor but the only wire color they had in common was black>>>>> Any Ideas would be appreciated !!!!

4 Answers

Relevance
  • 1 decade ago
    Favorite Answer

    1st thing,is the new motor the same voltage as the old one?,same horsepower?...does the new motor turn in only one direction as indicated by an arrow on the info sticker or elsewhere on the motor,or is it reversable?......sounds like you may have switched the common wire and the capacitor wire...did you install a new capacitor of the correct microfarad [ abbreviated "uf" or "mfd" ] value? its possible a bad capacitor may have contributed to the failure of the old motor....need more info....if possible,pictures of the old motor and new motor with wires clearly visible might help if you know how to post those.........dan

    Source(s): 20+yrs hvac tech
  • 1 decade ago

    Hello

    Are you talking about the inside unit blower fan for forcing the air across the evaporator coil and trough some ductwork?

    If so, did the original fan motor have a capacitor (Condensor)?

    Is this a 2/dual speed motor.

    Here is a link to a diagram of the blower fan motor (2 speed with condensor):

    http://www.hvacmechanic.com/forums/hvacr/messages/...

    You have to get the wiring diagram for you new motor to check which wire is common, which is the low speed and which is for high speed.

    Follow the diagram for equivalent connections.

    Good Luck

    Source(s): 45 years in construction, 41 years certified electrician.
  • You have the wrong motor, you need one that runs the opposite rotation or one that is reversible.

  • 1 decade ago

    switch the other two wires but that really shouldn't matter since it's proabally a 110v single phase fan it should not affect the rotation but you nver know.

    Source(s): refrigeration tech
Still have questions? Get your answers by asking now.