Rheem heat pump
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Thread: Rheem heat pump

  1. #1

    Rheem heat pump

    hello all

    i am tkjimmy and read about this site on the reefer tech forum.

    i help others every day on that site . I have 30 years in the transport refrig. business.

    today i have a problem that i was hoping one of you guys could help me with.
    i have a rheem RHSL-HM3617JA system and the condensing unit will not run in the heat mode,only runs on back-up heat.
    it will run in the cool mode

    inside the unit i see 2 led light
    led1 off
    led2 blinking

    could someone help me with these codes please?

    thanks tkjimmy

  2. #2
    Join Date
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    Moved to tech to tech forum.
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  3. #3
    Join Date
    Jun 2010
    Location
    Jacksonville, Florida
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    You say the outdoor unit will run in Emergency Heat Mode when you set the t Stat to Emergency Heat? Emergency Heat should turn on Heat Strips on the indoor unit and the fan, that's all. It sounds like either a T Stat problem, because RHEEM requires 24 volts to reversing valve to switch to heat. In cool there will be no voltage to the reversing valve. It could also be a bad defrost board.

  4. #4
    Join Date
    Nov 2012
    Location
    PA
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    47
    Could be outdoor t'stat issue as well.

  5. #5
    Join Date
    Jul 2007
    Location
    Virginia
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    Quote Originally Posted by tkjimmy View Post
    i have a rheem RHSL-HM3617JA system and the condensing unit will not run
    inside the unit i see 2 led light
    led1 off
    led2 blinking

    could someone help me with these codes please?
    You gave us the model number for the air handler and not the Heat Pump (outside unit).

    Those two LED's you are talking about are on the defrost control board of the Heat Pump - correct?

    I think that LED combination means - LOW PRESSURE LOCKOUT

    Post the model number of the outside unit for further verification.
    Instead of learning the tricks of the trade, learn the trade.

  6. #6
    13pjl36a01 sorry for the error.
    the condensing unit does not come on in the heat mode but does in cool

  7. #7
    Join Date
    Jan 2004
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    Lancaster PA
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    67,597
    Sounds like a stat problem or setting.
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  8. #8
    Join Date
    Jul 2007
    Location
    Virginia
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    Quote Originally Posted by tkjimmy View Post
    13pjl36a01 sorry for the error.
    the condensing unit does not come on in the heat mode but does in cool
    It is the same code for the 13JPL.

    The compressor and fan motor will stop when the low pressure control opens, and will start again when the low side pressure rises to approximately 40 psig when the low pressure control automatically resets. If the low pressure switch trips 3 times within 120 minutes of operation during a particular call for heating operation, the defrost control will lock out compressor and outdoor fan operation.
    Instead of learning the tricks of the trade, learn the trade.

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