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Dehumidifier AD75USTO Whirlpool. Taking in air but not taking out moisture.Seems to be frozen up inside, etc. Can I get a manuel?

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Sorry, but your Model # doesn't match any Whirlpool Appliance in my data base. However, another company may have bought the rights to use the Whirlpool name on house brand that they sell. But, lets get to a solution to your immediate problem.

First turn OFF the MASTER ON/OFF Switch and unplug the unit from the wall outlet and allow the unit to completely thaw, before removing and cleaning the air filter. As, I suspect, the filter is dirty and may be clogged. Historically, this is one of the things that can cause a dehumidifier to struggle and not be able to keep up.

After you remove and clean the filter, remove the water collection bucket and look for the drain tube or hole that drains the water into the collection bucket. Using an 18" long plastic Zip Tie, that will fit into the drain hole or tube. Carefully insert the tube into the drain hole. Continue to push it in and you'll reach a bend in the tubing. Carefully push it past this bend, as far as you can. Then, while rotating the Zip Tie, pull it back out slowly. Be prepared for some water to follow. One word of caution - DO NOT use a wire coat hanger to clear the drain tube.

Reassemble everything and you should be good to go. If however, the unit freezes up again, the compressor may be low of refrigerant gas and it will need to be recharged.

Hope this helps you continue to troubleshoot and solve the problem.

Posted on Apr 10, 2011


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2 Answers

Does not collect water in bucket but runs all the time

Does it have a filter?


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."

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1 Answer

Front has moisture on fins, runs but does not take out much water even though basement is real wet, I noted the whole front was frozen last week...

There can be 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


Sep 14, 2010 | Whirlpool Gold AD70USS 70 Pint Per Day...

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Unit not taking moisture out even tho the fan seems to be working

is compressor running fan maybe compressor must be running for dehum to take the compressor has a distint sound should be easy to tell by sound

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0GE Dehumidifier AHM65LKM1 not taking moisture out of the air

There are many reasons for a dehumidifier2_bing.gif to not work or collect water.
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May 23, 2010 | GE AHK65LK Dehumidifier

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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

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Friedrich dehumidifier

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.

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

Dave E. (Illeagle)

Jun 01, 2008 | Friedrich D50C Dehumidifier

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