Question about Edison 40 Pint Dehumidifier

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Model dhe40wg coils frost up but dont defrost fan continues to run

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My coils freeze up on my edison 40 any ideas

Posted on Dec 28, 2008

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The compressor and fan are running, however, there is no water coming out. RH is 70, temp is 66. This is after replacing a blower that had already seized up 2 years ago.


The dehumidifier should be removing water at 66F 70%rh.

First make sure that the compressor and fan are running. If they are, then turn the dehumidifier off and unplug the cord from the wall outlet. Next remove the front cover from the dehumidifier. Examine the evaporator coil (about 1/2 way up) beneath the plastic heat exchanger and above the stainless steel drain pan.

If the evaporator coil is cold and completely covered with frost & ice, the defrost thermostat may be defective. Replace the front cover. turn the humidity dial to "off". Plug the dehumidifier in to the wall outlet and set the fan switch to on - the fan will run (no compressor). Run this way for one hour to defrost the evaporator. Now adjust the humidity dial to your desired humidity and keep an eye on the dehumidifier. If it freezes up again and does not automatically defrost, the defrost thermostat should be replaced. Call the manufacturer at 1-800-533-7533 for parts and instructions.

If the evaporator coil is (mostly) warm and free of frost and ice, it is likely that some of the dehumidifier refrigerant has leaked out. this type of service should be done by a (refrigerant) certified technician. Call the manufacturer at 1-800-533-7533 for help with this service.

Aug 20, 2013 | Therma-Stor Santa Fe 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

2 Answers

Why is my dehumidifier icing up.


The room temperature is probably too cold, or there's poor airflow
Here's some info that should help you figure out what's causing the problem:

If the evaporator coil is frosting completely and evenly, the most common cause is that the room temperature is too cold. Most dehumidifiers are not meant to be used when the room temperature drops much below 70°F and certainly not below 65°F (depending on humidity). There are however some models called "basement" dehumidifiers which are.

Another possible cause on standard models is poor air flow through the unit. If the fan motor is not turning fast enough (or at all) or the evaporator, condenser or filter (if used) being plugged can also cause this symptom .

May 13, 2011 | Goldstar DH304 Dehumidifier

1 Answer

I have a dehumidifier (Emerson I believe - sorry don't have the model # right now) in a very cool basement (55-60 degeres). When I turn it on the coil quickly frosts up as expected and a while later the...


Dehumdifiers work by cooling a coil below the dew point temperature of the ambient air. When this happens frost or water will form on the coil. Most room dehumidifiers work with the room temperature above 65 deg F. It works well when the temperature of the room is 65 deg F or higher. But when the temp is below 65, it won't work because the coil does not reach the dew point.

There are cold temperature dehumidifiers that are designed to work in colder environments such as basements. They can work in a environment as cold as 40 deg F. Check your owners manual to see what type of humidifier you have to see what is the minimum operating temperature for you unit. Hope this helps you.

Dec 03, 2010 | Dehumidifiers

1 Answer

Fan motor doesn't run.


You're gonna have to do a little work but there should be and electric motor shop in any large city that can rebuild YOUR motor. (found quite a few listed under <electric motor> in the GR,MI yellow pages)

Jun 06, 2009 | Edison 40 Pint Dehumidifier

1 Answer

Running but not collecting water


your coils are probably frosted up. This can happen from the basement temperature being too cold if you dont have the automatic defrost type of dehumidifier, or it could be low on coolant from a pinhole that leaked it out. Mine did the same thing and I had to buy another one. I bought one thats operates down to 41 degrees Fahrenheit and it is an automatic defrost type. It works good for my basement because I have central air which makes the basement even cooler and harder to dehumidify without freezing the dehumidifier up.

Apr 19, 2009 | Kenmore 53701 Dehumidifier

1 Answer

Dehumidifier


Most dehumidifiers these days have a built in defrost control, which turns the compressor off when the coils frost up while the fan continues to blow to help melt the frost off, so if it is frosting you may need a new defrost control, but first check the following: If your model has an air filter, clean it, as restriction of air flow will contribute to icing. Try to move the unit to a warmer location. Usually the best way to do this is to get it above the floor as far as possible, as the air temp is warmer closer to the ceiling than it is at the floor. Make sure there is plenty of room for air to circulate. (don't push it against a wall)

Sep 15, 2008 | Danby Dehumidifiers

1 Answer

Not working


Hate to tell you, but it may be a goner. Many units have a rectangular air filter that may be clogged, but I would still expect to see some moisture removal. Without exact model I'll have to be general,.... remove cover (front or back, depends on model) to see cooling coils. If the compressor is running, these coils should be wet or may have a light frost on them for a time. Not = refrigerant leak. (not economical to repair) If you see one small area of ice,... it's also a goner. If the compressor does not run you could have a bad compressor, a bad defrost control, or a bad control / humidistat. Other than the filter or possibly a fan motor, these unit are rarely economical to repair.

Aug 27, 2008 | Dehumidifiers

1 Answer

Ebac 880 E


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.
If your model does not employ a "Frost-Guard" the condition you describe will avail itself when the above parameters are not met.
Simply unplug, or turn off the unit, until the above parameters are met or exceeded.


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

Dave E. (Illeagle)

Jun 01, 2008 | Ebac AD850 Dehumidifier

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