Question about Kenmore 54351 Dehumidifier

1 Answer

No 120v to fan motor

Do not have 120 v from fan relay to fan motor, can not tell if relay is closed, no test point available from top of board. Everything else appears to work!

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  • Bert55 Jun 02, 2008

    I should have stated that the compressor comes on and stays on. I dont know what pulls in the low voltage fan relay. Fan never turns on because it's not getting 120 V from the fan relay.

    Thanks, Bert55

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  • Master
  • 525 Answers

It sounds as if this may have electronic controls on it. If so, the problem could be related to too low of an ambient temperature or too low humidity in the air. If this design has a temperature sensor built into it, you may be experiencing "hibernation mode", where the unit will appear to be dead, when it is actually awaiting the proper temperature to employ itself.
The following statement is a parameter for all dehumidifiers and some of the control issues may vary, but the theory is the same.

Most dehumidifiers have a "Frost Guard" mounted on the condensor coil. If frost accumulates on the condensor coil the frost guard turns the compressor off until the frost melts, then comes back on again. For the dehumidifier to work properly, the surrounding (ambient), temperature must be higher than 65 degress. This temperature allows the moisture in the air to condense on the coils and drip into the reservoir without freezing up on the condensor coil. Also, if the humidity is too low, (below 45%), the same condition will occur. So it will help to keep the parameters in mind when you have this issue.

Thank you for your allowing me to advise you on this issue.

Dave E. (Illeagle)

Posted on Jun 02, 2008

  • David Emmel
    David Emmel Jun 03, 2008

    The control board sends the power to the relay, so if you have no low voltage to the relay then the circuit board will need to be replaced.

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