Question about Ruud UBHC Air Conditioner

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EVAPORATOR MOTOR WILL NOT STAY ON

HAVE REPLACED CONTROL BOARD BECAUSE OK LIGHT  KEPT FLASHING ON\OFF,BLOWER BLOWER CYCLES INTERMITTENLY 'PROBLEM PERSISTS

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  • DNBT332 Jul 23, 2008

    found prolem, i think, dust on blower motor housing would trip over-
    heat sensor  but still my wholesaler tested original control
    board sho-nuf it was bad. COULD THE OVERHEATING MOTOR
    DAMAGE CONTROL BOARD? yes installed new control board 
    appreciate your nput THANK YOU,ELECTRIC 201

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  • 20 Answers

M
ake sure yo have a good ground to the unit

allso take note of blinkingg ligths these are codes to let you know what the problem is

Posted on Jul 23, 2008

  • daniel stein Jul 24, 2008

    nope overheating of the motor would not have caused the board to go power surge bad grounding ligthning and directly shorting it would cause that the board should be protected by 3 amp fuse

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