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3 ph fan motor

Discussion in 'Electrical Engineering' started by SimonLW, Jul 13, 2005.

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  1. SimonLW

    SimonLW Guest

    I was checking the roof units for clogged condensor coils and non working
    fans (each unit has three fans). I found one fan operating at what seemed
    like half speed. It was not making any unusual sounds.

    Would an open phase in the motor cause this?

    Thanks -S
  2. Bob

    Bob Guest

    Yes, and it will burn up if left that way. HURRY! Just so you know
    however, the open phase could just be a blown fuse in the circuit
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