Question about Fedders A7DH45B2A Dehumidifier

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Ihave the dehumidifier turned on in my basement...fan runs....displays show the humidity, and temperature...but the tray does not fill up with water at all. Is there a specific setting for the humidity..I had it on 50 or 60?

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  • Fedders Master
  • 43,501 Answers

Hi,
There are many reasons why a dehumidifier willnot work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrongwith their dehumidifier

Dehumidifier is running but no water is in bucket

heatman101

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Posted on Mar 07, 2011

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Posted on Jan 02, 2017

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My kenmore 5949 dehumidifier is not lowering the humidity in my basement. The unit is on and the fan is running, but the humidity stays at 99 percent.


Is the water tank filling up? That will verify that the unit is really functioning normally. If so, is it possible that outside air is infiltrating the space?

Aug 08, 2011 | Kenmore Dehumidifiers

2 Answers

I have a 2 year old Frigidaire dehumidifier model FDM7051 and this summer when I turned it on it runs continuously with the fan moving normal amounts of air. The air filter and coils are clean and I have...


Don, unless your dehumidifier is a Low temperature model, that very well may be the problem.
The air temp in a basement at floor level is colder than that chest level. Dehumidifiers don't work well at temperatures at 40 degrees F or less. Raising the unit up off the floor on to a sturdy table, counter top, etc, that is strong enough to handle it's weight, plus a full tank of water, will generally solve the problem. The higher up you can safely put it, the better. Also, lower the humidity extraction level to 35%. As 50% is just not low enough in a basement application.

Hope this helps you to solve the problem.

Jul 20, 2011 | Frigidaire Dehumidifiers

1 Answer

Unit no longer removes water/humidity from air. The filter had been extremly clogged up (now clean) but is fan suppossed to move when it's running ? If so - is it electric or belt driven ? Is...


Well, we know the filter was playing a role in it.. Good job on cleaning that. Depending on where you have the humidity extraction level set, the fan could run all the time (It's direct drive. No belt). I suspect if you lower the humidity extraction level to 35%, you will see/hear water collecting in the bucket after about 30 minutes to an hour of operation.

Also, maintain at least 18" of clear air space around the entire unit.

In addition, if you're using this in a basement Ambient air temperature at floor level is between 40 - 60 degrees. dehumidifiers do not work well between those temperatures Unless, you have a Low Temp Unit). This applies mainly to where the air temperature at floor level is colder than at shoulder level
in basement applications . Raising the unit up off the floor, onto a sturdy table, counter top, etc, that can handle the weight of the unit, plus a full tank of water, will usually resolve this problem.

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

Jul 11, 2011 | Kenmore 54501 Dehumidifier

1 Answer

Compressor sounds as if its on, the fan is on, but water is not extrated from the air


If the room air is less than the set air then there is no water in the bucket because there is almost no humidity in the air. If it is winter, there is likely not enough humidity in the air to have water collect in the bucket. A dehumidifier will only pick up humidity out of warm air. If you are running a dehumidifier in your basement in the winter, the room may be damp, but too cold for the dehumidifier to pull out the humidity. Try running the unit in the bathroom after having a hot shower without the bathroom fan on. If working correctly the unit should draw water.

In addition, check to see if the air filter is dirty and/or blocked. Also, the room temperature might be too low, (below 15.5 C/ 60F) and finally, check to make sure that there is no obstruction to the unit, that might be causing poor airflow circulation.

I hope this helps you to troubleshoot and solve the problem.

Apr 28, 2011 | DeLonghi DE500P Dehumidifier

1 Answer

Fan works but compressor does not kick in, therefore does not collect water. temperature and humidity in basement : same as before


Hi,

Here is a tip that explains what can be happening to make the dehumidifier showthat the bucket is full when it is not.

Dehumidifier Problem It shows Bucket Full

heatman101

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Apr 15, 2011 | Whirlpool Gold AD70USS 70 Pint Per Day...

1 Answer

Does not generate water. The fan keeps on running. Forms ice on coils


If the room temperature is close to 60, the coils may be frozen (completely encased in ice). If this is the case, move it where the water can drain off - about 1 gallon which may NOT run into the drain bucket.
I out mine over the floor drain.
Turn off and it will defrost over night.
Only specially made dehumidifiers work below a room temp of 60 degrees (the temp of a basement in winter).
Does it need to be running? A digital humidity sensor from Radio Shack is cheap and may tell you the humidity is OK - only 50% or less.

Jan 06, 2010 | Danby DDR586R Dehumidifier

1 Answer

My Soleus Dehumidifer is not dehumidifying


If the room temperature is close to 60, the coils may be frozen (completely encased in ice). If this is the case, move it where the water can drain off - about 1 gallon which may NOT run into the drain bucket.
I out mine over the floor drain.
Turn off and it will defrost over night.
Only specially made dehumidifiers work below a room temp of 60 degrees (the temp of a basement in winter).
Does it need to be running? A digital humidity sensor from Radio Shack is cheap and may tell you the humidity is OK - only 50% or less.

Dec 30, 2009 | Soleus CFM-40 Dehumidifier

1 Answer

When do you use the dehumidifier?


In areas with poor circulation and humidity over 80%.
If the room temperature is close to 60, the coils may be frozen (completely encased in ice). If this is the case, move it where the water can drain off - about 1 gallon which may NOT run into the drain bucket.
I out mine over the floor drain.
Turn off and it will defrost over night.
Only specially made dehumidifiers work below a room temp of 60 degrees (the temp of a basement in winter).
Does it need to be running? A digital humidity sensor from Radio Shack is cheap and may tell you the humidity is OK - only 50% or less.

Dec 28, 2009 | Whirlpool Gold AD70USS 70 Pint Per Day...

1 Answer

Unit comes on compresor and fan run but not collect much water


If the room temperature is close to 60, the coils may be frozen (completely encased in ice). If this is the case, move it where the water can drain off - about 1 gallon which may NOT run into the drain bucket.
I out mine over the floor drain.
Turn off and it will defrost over night.
Only specially made dehumidifiers work below a room temp of 60 degrees (the temp of a basement in winter).
Does it need to be running? A digital humidity sensor from Radio Shack is cheap and may tell you the humidity is OK - only 50% or less.

Dec 28, 2009 | Kenmore 54501 Dehumidifier

1 Answer

Works well but


Yup, they eat energy.

An electric dehumidifier includes a refrigeration cycle that is very similar to a window AC units and refrigerators. They cool the air in the basement to condense and collect water and remove humidity, heat the air as a required consequence of the refrigeration cycle and dump it back to your basement.

Two sources of humidity in basements include warm outside air that naturally cools due to below grade earth contact and water passing from the ground though the floors and walls and evaporating into the basement. Dehumidifiers do most of the work in the summer when higher temperatures outside enable air to hold more water content.

In the winter, cooler outside air contains less moisture by weight eventhough it may be raining and the relative humidity in basement will be less because the air is warmed relative to the outside. The lower moisture content in the winter also absorbs the water passing through the walls and floor.

From an energy perspective, you may want the humidity set NOT below 50%. This will keep humidity below the level mold desires, but prevents the dehumidifier from doing more work and eating more energy than needed. A cheap battery powered temp/humidy meter left in your basement will help. Sources that include the "mold triangle" (temperature, water & food) often separate fact from expensive hype.

If the dehumidifier doesn't keep up, consider adding a moisture barrier to the basement walls and floors such as Dry-lock and floor paints to ****** moisture entry. Moisture barriers act very similar with water as insulation does with heat. They don't eliminate the need for a dehumidifier, but they reduce the work they do and energy they eat.

Oct 02, 2008 | DeLonghi DH40P Dehumidifier

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