Question about Kenmore 54701 Dehumidifier

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Unit will not go into defrost cycle

Obviously the reversing valve is not being energized. I did a continuity test on the solenoid and it is not open. This leaves me with the thermistor or ultimately the control board. I did an ohm reading on the thermistor but I don't know what resistance I should be getting at room temp and some where around 32 degrees.Any one that might have these readings sure would appreciate...thanks

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I have the same problem. Have replaced all the other components. I am trying to get a new solenoid from Sears. They are out and are trying to figure out where they can get them. In the mean time take as much of it apart as you can. Clean mating surfaces with very fine emory cloth. Spray metal surfaces with WD40. Reassemble and put a small piece of duct tape on top of solenoid to keep water and condensate out. Unplug and replug solenoid in on pc board. I am just waiting now to see if this works.

Posted on Jun 26, 2008

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I have an Emerson Quiet Kool dehumidifier that is probably 20 years old. When it is running, you can hear the system cycling on and off every 2-3 seconds. The fan always runs. What could cause this?


The temperature sensor can be broken or because it is an old unit is the freon gas can be escaped by an internal leak in the compressor circuit and thus no longer works, there is a part to be internally freezing when the compressor is running. dismantel to look also if thereis somewhere in the circuit a solenoid-valve to find that will not get dc function by electronica.

Jun 05, 2016 | Dehumidifiers

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Runs but does not produce water


(1) Make sure that the fan is turning OK as dust often gums-up the bearings. (2) Make sure that the heat exchangers are not clogged with dust. If the main motor, the so-called pot, is running but no cooling results it could be

(A) The refrigerant has been lost. This is an extremely bad fault which makes the unit a basket-case. The reason being that even if a self-piercing filling point is added to recharge the unit with refrigerant, unless the leak is found and fixed the repair will be a nine day wonder.

(B) This fault is more likely and the fix is do-able. It is quite likely that the machine is stuck in its defrost cycle. Wiring problems, thermistor problems or relay problems are all possibilities. Some machines use an electric heater on the evaporator (the part that freezes-out moisture from the air) If the heater is stuck on, the evaporator will never become cold enough to work. The more usual defrosting method is Hot Gas Purge and if this is the type used there will be a special electrically operated valve in the refrigeration circuit. Often the default is to defrost-on-start-up so its easy to listen to the valve to see whether it clicks. Good luck!

Jul 09, 2014 | Kenmore 54501 Dehumidifier

1 Answer

Coils freeze up. completely blocked. have to shut off to thaw coils. located in basement.


After the unit is totally thawed and dried, turn the unit Off if you haven't already and unplug it. Remove the filter and clean it. If it's really dirty wash it with warm water and dish washing liquid, thoroughly rinse it and allow it to completely dry, before reinstalling. DO NOT operate the unit without the filter in place.

Because the air temperature in a basement is colder at floor level, than at shoulder level, this caused the coils to freeze. Dehumidifiers do not work well at temperatures at or below 60 degrees F. That is, unless, it's a Low Temperature model, designed especially for basement applications. Obviously, yours isn't a Low Temp model.

To overcome this, place the unit up on a sturdy table, counter top, etc, that can handle the weight of the unit, as well as a full bucket of water. The higher off the floor the better. This way, the ambient operational temperature will be higher and the coils will have less of chance to freeze again.

I would suggest that continue to monitor the unit and if you notice that it's doing more than a little frosting on the coils, turn the unit OFF immediately. A little frosting is normal and the deforst mode should kick in and thaw the coils. When this happens, the compressor should automatically shut OFF, but the fan will continue to run. Once it's defrosted, the compressor will start again, if necessary.

I hope this helped you to troubleshoot and solve the problem. Please let me know.

Jul 19, 2011 | Whirlpool AD50DSL Dehumidifier

1 Answer

Does the fan on a Kenmore dehumidifier run continuously, or does it shut off when the set point is reached? I returned a Frigidaire unit because the fan is designed to run continuously.


That depends on the manufacturer and in what mode you are operating it. If it's Continuous Mode. Yes, the fan will continue to run, as it's recirculating the air, in an effort to determine if and when the humidity level rises. Then the compressor will turn ON to extract the humidity.

Also, most units will do this if they are running thru the Defrost Cycle. This happens when the cooling coils frost over. It to, is a normal cycle.

So, if you are operating the dehumidifier in Continuous Mode, it's acceptable.
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Hope this helped you. Please let me know. Thanks.

Jun 18, 2011 | Kenmore 54501 Dehumidifier

1 Answer

Whirlpool DEHUMIDIFIER Model - AD70USS1 does fan NOT does not cycle off anymore in the low settings as it should


According to the Owner's Manual for your model, the fan will run continually, if the unit is set in continuous mode or if the unit is in defrost mode. Once the unit senses a rise in the humidity level, the compressor will start up again. Also, a dirty or clogged air filter will cause the fan to run more that it should.

Hope this helps you troubleshoot and solve the problem.

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1 Answer

My dehumidifer collect water but the fan blows hot her so it makes the room hotter


This may be caused by running the unit in continuous mode, rather than timed mode. The heat is generally is generated when the defrost mode cycles on, to defrost the cooling coils. This happens more frequently, if the air space around the unit is obstructed or it's operating in a temperature range of 40 to 60 F. Cleaning the air intake filter at least once a week, can help solve this problem, too.

Maintain a minimum of 12" free air space around all sides of the dehumidifier. Use a timed mode rather than a continuous mode. Make sure the room is within the proper operating temperature range and clean the air intake filter weekly.

Hope this helped you troubleshoot and solve the problem.

May 28, 2011 | Maytag M7DH65B2A Dehumidifier

1 Answer

Motor runs, but dehumidifier does not collect water


Keep in mind, that a dehumidifier only draws humidity from the air, if the level of humidity is higher than what the controls are set on. The fan running, may be the automatic defrost cycle, that defrost the coils, if they become frosted over. The defrost cycle, depending on the unit and how is was designed, can last any where from 15 minutes up to 45 minutes.

Also, a dirty air intake filter makes the unit strain to keep up and can't take in moisture as it should. So, if you haven't cleaned the filter on a regular basis, not is the time to do so. And while your at it, clean the cooling coils too.

The easiest and best way to test a dehumidifier at home, to see if it's working properly. Is to place it in the bathroom and turn the shower ON and don't operate the bathroom's exhaust fan. Set the humidity level low (45%), turn the unit ON and close the door when you leave. Wait 30 to 40 minutes and check the water collection bucket. If there's water in it, it's working as it should.

Hope this helped you to solve the problem. Please let me know.

May 03, 2011 | Whirlpool Dehumidifiers

1 Answer

My Santa Fe RX runs for about 1/2 hr. The accumulator gets cold and than warm. Compressor & fan run. Humidity is set to max. No water is ever collected (I monitor the pump reservoir).I have removed the...


Are you keeping all of the metal covers in place while the machine is running? If you remove some of the metal covers, the fan may not move the air through the dehumidifier as intended.

If the compressor runs (with all of the metal covers in place) and the accumulator does not become cold, there are a few things that may be affecting your dehumidifier.

1. low refrigerant charge - you may have a refrigerant leak.
2. blocked capillary tube or broken expansion valve.
3. blocked air filter prevents enough air from moving through the dehumidifier.

Good Luck - DryDog

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1 Answer

Dehumidifier icing up - no defrost cycle


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The unit may be leaking freon...
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Dehumidifier is Freezing up and not working

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1 Answer

Constant on-off cycle


If the unit is freezing up I suggest replacing the sensor assembly. Just replaced mine because the thermistor that is on the suction line went bad and would not send the reversing valve into defrost.

Oct 09, 2007 | Kenmore 54701 Dehumidifier

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