Question about Fedders A7DH45B2A Dehumidifier

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My dehumidifier fan blows out and is not taking moisture our of the air.

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  • Fedders Master
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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


/.,

Posted on Oct 09, 2010

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1 Answer

My dehumidier blows very hot air while working. Makes it hotter than it was before starting. Like a furnace.


It is normal for a dehumidifier to discharge warm air. A dehumidifier is really an air conditioner - a fan blows humid room air across a cold fin coil that causes the moisture to condense on it and drip into a container - thus cooling AND dehumidifying the air. The cool air is blown over the warm coil and discharged out the back. A dehumidifier WILL normally increase the temperature of the room it is in.
You can do the same thing with sitting an A/C unit on a stool in a room. Room air will be drawn in, cold air will come out the front, hot air out the back and water will drip on the floor. And, the room will get hotter, due to what is called "heat of compression" even though you're running an A/C unit.

Jun 26, 2013 | Windchaser WDH928 Dehumidifier

1 Answer

Model BHD 651-C Serial 611TA000375 Problem: Unit comes on, fan operates but compressor is not kicking in. While the fan operates it is not pulling any moisture out of the air. Controls indicate that...


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

';';';';';';';
';';

Jun 09, 2011 | Comfort-Aire BHD-651 Dehumidifier

1 Answer

My dehumidifier ices up. It will not remove moisture when it ices up. What can I do and is it under warranty?


Hi,

The coils you see on the back of your dehumidifier are the evaporator. When the unit runs, the coils get very cold. As the fan draws the room air over the coils, the humidity in the air condenses out of the air onto the cold coils. But, if the temperature of the air the fan draws over the coils is too cool, the humidity that condenses out of the air freezes on the coils. To remedy this problem, you can try any of these: Warm up the room the dehumidifier is in. Put the dehumidifier on a sturdy table (the room air is coolest near the ground). Turn the unit off until the room warms up.

Take care.


Aug 10, 2010 | Fedders A7DH45B2A Dehumidifier

1 Answer

We inherited a 655e. It seems to function properly, at least it responds to controls the way it should. It does dry the air, the bucket will slowly fill, but the unit blows warm or hot air. I'm new to this...


Dehumidifiers are designed to remove the moisture from the air not to cool. Unfortunately, the way they remove this moisture is to reheat the air to further dry it after it releases its moisture. Basically, the room temperature humid air enters the dehumidifier where it is cooled to its dew point which results in its releasing its moisture. This dried air is then heated by the combination of latent heat of condensation, which is a natural result of the process, and by circulating through the condenser where heat is exchanged from it to the air. The result is the air going back into the room will be slightly warmer than it was going in, usually around 2 to 5 degrees.

Aug 09, 2010 | Haier HDN655E 65 Pint Dehumidifier...

1 Answer

My LG LHD45EL all of a sudden


Short on refrigerant... or a failed compressor. are most likely or a system problem, causing it to trip off.

There may also be a failed electrical component, you need to check for voltage at the compressor.

cheers

Jul 02, 2010 | LG LHD45EL Dehumidifier

2 Answers

Start up instruction for dehumidifier


A dehumidifier does not need water in the tank.It takes humidity out of the air and the moisture goes into the bucket. A humidifier has to have water in the tank.Note ,a humidifier puts moisture in the air, and a dehumidifier takes the moisture takes moisture out of the air.

Feb 16, 2010 | Kenmore 54501 Dehumidifier

1 Answer

No moisture


check to see if the coils in the back are cold. if they are not, you either have no freon or the vent in the front is blocked and the condenser coils have no air flow to cool down. if they are, there might not be sufficient air flow across the evaporator coils or the air is already dry.

also, if the bucket switch isn't activated (due to the bucket not being in all the way), the fans will come on, but not the compressor.

Aug 12, 2009 | Maytag M3DH30B2A Dehumidifier

1 Answer

Dehumidifier not removing moisture


could have overheated the compressor if the filter was really dirty and blown it

Jun 20, 2009 | Maytag M3DH30B2A Dehumidifier

1 Answer

Dehumidifer stopped collecting moisture, blows air w/ empty tank


Possible cause it's out of gas.

you might have to get a refridgeration mechanic to regas it, or/and fix any gas leaks

Apr 02, 2009 | Maytag M3DH30B2A Dehumidifier

1 Answer

Unit Runs (fan and condenser) but no water?


By condenser I assume you mean the compressor is running. Is there ice forming on the front coil?

Jan 08, 2008 | Comfort-Aire BHD-651 Dehumidifier

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