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It runs but does not take humidy out of the air. There is no water in the tub. The compressor seems very hot to the touch. I cleaned the filter. The fan motor is working fine. What do you think the problem might be. It is Model A7DH45B2A * A-R Serial AS790568 029W Thank You Norman Eastman

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There are many reasons why a dehumidifier will not work or collect water.

Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier

Dehumidifier is running but no water is in bucket


Posted on Aug 29, 2010


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1 1/2 year old machine runs but does not pull water from air

is the condenser getting cold at all? if not or only a little, you have a compressor issue. possibly no refrigerant. also check the air flow. if the fan isn't on, it'll just get too hot and water won't condense on heat.

Feb 21, 2014 | Dehumidifiers

1 Answer

I thought the freezing up issue was resolved post cleaning of filter (didn't know there was one). Now, it will begin to run but shut off...the compressor doesn't seem to engage. How may I re

Glad to hear that cleaning the filter got us to the next step-- Congrats on the progress!
Now Tell me more about what you mean by: ..." THe compressor doesn't seem to engage."
If you can reach the compressor piping, you can tell if the compressor is 'engaging' - by noticing a drastic difference in temperature -- the outlet pipe-- usually near the top of the compressor can-- / -- and the inlet pipr -- usually further down the side or near the bottom of the compressor.
THe Discharge pipe can get VERY HOT at the top, and the Suction pipe at the lower level can get VERY COLD (likely close to freezing) at the inlet-- the lower pipe.
Be very careful!!, if the compressor has been running a few minutes-- as the outlet pipe can burn your fingers!
Anyway-- if you notice a great difference in temperature, while the compressor is running, you know that it is moving gasses thru the system-- and thus should be creating the condensing surfaces needed to cause water to be removed from the air flowing thru the coils.
Please check this, and let us know what you learn.-- then maybe we need to dig deeper--- Like where is a frost (or sweat) line appearing, -- and more about air flowing details.
Hope this was helpful- MB

Sep 03, 2012 | Comfort-Aire BHD-301 Dehumidifier

1 Answer

Maytag Model M7DH65B2A will not dehumidify and only the fan blows cool air but not taking humidiity out of the air. How should the dehumifier be fixed?

Martin, you may not need to have it repaired if you check and troubleshoot, these 5 basic things that can cause this problem. All are solvable. Please take note of # 1.

1. The humidity extraction level is set to HIGH. Lower it to 32-35%.

2. Air intake filter is dirty or clogged. Turn unit OFF, remove and clean it, if necessary. If washed,
allow filter to completely dry before reinstalling. DO NOT operate the unit without the filter.

3. Obstructed air flow. Maintain a minimum of 12 to 18" of clear air space around the entire unit.

4. Cooling coils are dirty and need to be cleaned. Use warm water & dish washing liquid to clean
the coils. Rinse and wipe dry. Apply a light coating of WD40 to the coils.

5. Ambient air temperature at floor level is between 40 - 60 degrees F. Dehumidifiers do not work
well between those temperatures (Unless, you have a Low Temp Unit). This applies mainly to
basement applications, where the air temperature at floor level is colder than at shoulder level.
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.

If none of the above solves the problem, it may be a case of the compressor needs to be recharged with refrigerant gas or that the humidity sensor has failed. These things usually occur in units that are 5 years old or older. It's rare in a unit younger than that. But, it can happen.

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

Jun 20, 2011 | Maytag M7DH65B2A Dehumidifier

2 Answers

Dehumdifier not collecting water.

It may be that the humidity level or temperature in the room where your dehumidifier is located is too low.

When the outdoor temperature is below 50 F, the indoor air will be dry even when the air inside is warm, therefore when it's cold outside the dehumidifier may collect little or no water.

Air conditioners will also remove moisture from the room, even if it's hot and humid outside, resulting in little or no moisture collecting in the dehumidifier bucket.

Some dehumidifiers have a deicer which turns off the compressor but keeps the fan running. When the compressor is off, moisture is not removed from the air. The deicer turns off the compressor when the room temperature is cold.

Some dehumidifiers do not have a deicer. If the room temperature is low enough, ice may form on the evaporator coil. The ice prevents the dehumidifier from removing and collecting water. If ice forms on coils, unplug dehumidifier until ice melts and room temperature rises.

The filter (on some models) may be dirty or clogged. If so, clean the filter. For instructions on cleaning the filter.

I hope this help to solve, if this answer solve it, remember to rate it. Good luck.

Oct 01, 2010 | Whirlpool AD50USL Dehumidifier

1 Answer

My dehumidifier is running but is not pulling any water. I have the humidity control set at 35 and havae cleaned the filter

these units lose some to most of their charge in 2 to 3 years,if the compressor is very hot to the touch its low on R-134a refrigerant

Jul 19, 2010 | LG LHD45EL Dehumidifier

1 Answer

Compressor running very hot but almost no cooling. Fan running

make sure the coils are clean both evaporator and condenser,then if there is a capacitor in the motor circuitry,check this,finally if the coils frost,then clear up and frost and clear up time and again,this is a sign of low refrigerant R134a,and this also will make the compressor run hot

Apr 09, 2010 | Haier 45-Pint Dehumidifier

2 Answers

Seem like the compressor is not working very hot

Assuming this is the A/C compressor, right? The compressor will be hot to the touch, the question is whether or not it is engagining when turned on, Check to see if the compressor clutch iis working by having someone turn it on and off while listebibg an observing the compressor clutch. Low refrigerant would or should orevent compressor operation to protect the compressorthrough a safety switch. Good luck

Aug 21, 2009 | Dehumidifiers

1 Answer

Top of dehumidifier is very hot to the touch, filter is clean don't know what to do, afraid to put it on in case of fire.

Are you running it in high ambient temperatures?
Can you see any condensate(water) on the coil?
It may be that it is running above it's temperature range. A dehumidifier has two coils(radiators if you like). One gets cold, the other gets hot. The first one renoves the moisture from the air, this is the evaporator and is cold. The heat taken from the air is absorbed into the refrigerant and is given back to the air when it passes through th other coil, the condensor which is hot. The refrigeration circuit itself produces heat. This heat plus the heat absorbed from the air has to be got rid of. If the ambient temperature is high, the condensor will have trouble getting rid of the heat from the circuit. This can cause the case to feel hot to the touch. Assuming you don't have a refrigeration leak, it may not be worth running the unit if it is not removing moisture from the air. Is any water being dropped into the bucket? If it isn't, all you are doing is wasting electricity.

Aug 15, 2009 | Midea MDC-45AE Dehumidifier

2 Answers

Kenmore 54501 turns on but nothing happens in my damp basement

A dehumidifier heats and cools the air to remove moisture. Most are like a small air cond. The Condenser coil is right in front of the evap.coil. So the compressor may not be coming on. Does it sound the same as before? It may be low on freon. You will have to get in there and listen and feel the lines at or near the compressor, Learn how to get down in there to the compressor. Run it for 10 Mins. unplug it, open it up, and feel the lines. Some lines should be or can be HOT to the touch. Some should be cool. The smaller the line the hotter it should be, and the compressor should be warm (to hot) to the touch. repost for more info.

Jul 08, 2009 | Kenmore 54501 Dehumidifier

1 Answer

Unit runs but no water in storage tank

Make sure conditions are not too cold or too dry already.
Is the compressor running?
Set the unit to the continuous run setting or the dryest setting
compressor should start.
If compressor runs but the evaporator doesn't get cold the freon has
leaked out.
If compressor doesn't run no matter what you do the board may be bad.
Also the fan must blow air.

Sep 30, 2008 | LG DH30 GoldStar Dehumidifier

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