Question about Whirlpool AD25BBR Dehumidifier

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I turn the dehumider on continous run. It will make a buzzing noise then shuts off

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Why is it common for dehumider to frost up and then defrost?

To my knowledge this is not normal. It probably is a little low on refrigrent but to verify that be sure the air path is clean and the fan is operationg properly. Low air flow would also cause that type of problem.

May 01, 2014 | Soleus Dehumidifiers

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Dehumid. runs and fan blows but no water in tank and never shuts off, 5yr. old maytag, only runs in summer

Several things can cause this problem. The leading one, is that the humidity extraction level is set to high. Lower it to 35%. One of the others, is a dirty or clogged air intake filter. Followed by obstructed air flow. You need to maintain at least a minimum of 12" clear air space around the unit. Also, most humidifiers struggle to operate correctly, if the ambient air temperature at floor level is between 40 to 60 degrees F. This will also cause the fan to run a lot if the unit is set in continuous mode, rather than a timed mode. And finally, if any doors or windows are open, the unit will run forever. Make sure all doors and windows are closed.

Here's an in home test to see if it's working properly. Move the dehumidifier to the bathroom. Plug it in turn it ON and set the humidity/moisture extraction level to 35%. Turn the shower ON hot enough to generate steam. Do Not turn the bathroom exhaust fan ON and close any windows that may be open. As you exit the bathroom, close the door. Wait 15 to 20 minutes before returning to the bathroom. Once you do, turn the shower OFF and allow the unit to run for 5 minutes more. Then check the bucket for any signs of water. If you find some, the unit is working as it should.

If you don't see any signs of water, the unit's compressor may need to be recharged with refrigerant.

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

May 29, 2011 | Maytag M7DH65B2A Dehumidifier

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My dehumid is model # DH404Ey6. I plug it in and it reads 70% on the front setting. The power on/off button does not work. Or, at least, it doesn't react when I push the button. I put the bucket...

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


Apr 25, 2011 | Goldstar Dehumidifiers

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Dehumid. was working, went to empty it and now it acts like it has no power

If you mean you emptied it, and replaced the holding tank and now it doesn't work ... The holding tank probably didn't activate the safety trigger. Remove the tank and reinstall it, making sure that the tank triggers the safety switch. That should solve the problem.

Apr 05, 2011 | Kenmore 54701 Dehumidifier

1 Answer

Every thirty seconds it makes a buzzing noise like it is going to shut off and then turns back on.


Here is a tip that I wrote that will help you understand why and what you cando with a dehumidifier that ices up.

Dehumidifier is Freezing up and not working



Jan 27, 2011 | GE AHG40LJ Dehumidifier

1 Answer

My fedder dehumidifier m7dh45b2a makes an annoying noise

This noise is the vibration from the compressor...sometimes things can come loose and magnify the noise...check for loose parts and tighten as needed...
The compressor may also be going bad...

Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier2_bing.gif.

Dehumidifier is running but no water is in bucket


Oct 06, 2009 | Maytag M7DH45B2A Dehumidifier

1 Answer

Soleusair showing signs of limited life

If the room temp is below 60 degree, coils may be frozen in block of ice - see if you can see into grills.

If frozen, unplug and set in tub or over drain.

Check to see that it is not set on CONT (continous) as it will run but with low indoor humidity in winter, not have mosture to extract.

Sep 20, 2009 | Soleus CFM-40 Dehumidifier

1 Answer


What is the dry bulb temp in the room? what is the wet bulb temp in the room? what are you working in temp (in room)

Jun 08, 2009 | LG LD40E Dehumidifier

1 Answer

Figidaire 25 pint dehumidifier

Check the point on the tank (Bucket) where the hose connects to. Make sure there is no obstruction at the outlet of the bucket to the hose connection. Next make sure the hose has no kinks or no loops that may trap air to the drain. If necessary for a long run to the place of drainage raise the dehumidifier to a higher level for better drainage.

Jun 20, 2008 | Frigidaire FDL45P1 Dehumidifier

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