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-   -   Ac motor for condenser fan shuts down (https://www.askmehelpdesk.com/showthread.php?t=661917)

  • May 20, 2012, 11:59 AM
    daviddodaro
    Ac motor for condenser fan shuts down
    Just replaced ac /Motor on condenser fan shuts down after gets hot had three wires new one has to need help it comes on blows good cold air then gets hot shuts down after about 10 minutes maybe wiring is that it is wrong him please help
  • May 20, 2012, 12:08 PM
    Stratmando
    Does this motor require a capacitor?
  • May 20, 2012, 12:38 PM
    daviddodaro
    Yes I already replaced the capasitor
  • May 20, 2012, 12:50 PM
    Stratmando
    If it's the correct capacitor and working, I would verify it spins free.
    Intake or exhaust blocked?
  • May 20, 2012, 01:51 PM
    daviddodaro
    It spins free and what do u mean by intake and exhaust is blocked
  • May 21, 2012, 08:06 AM
    thermalmedics
    Seeing this one a lot lately

    Check outdoor coil is it clean?

    Check voltage at contactor and across contactor when running are you getting same voltage?

    Frayed wires etc. loose connections?

    Fan blade good - not cracked shaft in same place relative to old.

    Same hp and rpm

    Once eliminated all of this you may have to step up to a higher hp even a 1/2

    The motor is cutting out on its own internal heat overload
  • May 21, 2012, 12:11 PM
    Stratmando
    When the fan runs momentarily, is it blowing out the top, if it is sucking in, Motor may have a pair of wires that will change motor direction if swapped.

    "what do u mean by intake and exhaust is blocked?" I was momentarily thinking Air Handler, my mistake,
    If the coils are dirty, it would restrict flow, increasing current.

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