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I have a AD35USV deshumidifier. Power goes to it. the fan does'nt run and the unit makes a bip every second or so. nothing in the manual about that bip.

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Power s on unit doesnt run no fan nothing


Mosr dehumidifiers have a switch that shuts the unit off when the water tank is full check this float to make sure it is not stuck in the off position also empty the tank if it is full.Hope this helps.

Dec 10, 2013 | Friedrich d70bp dehumidifier,70 pt.,115v

1 Answer

When turn off. makes a humming sound. compressor seems to be running.


Have same issue with 3 year old Frigidaire dehumidifier purchased in 2012. Must unplug to stop compressor running with power switch turned off. Unit gets hot and smells. Unplugging creates arcs at outlet since unit is pulling a lot of power. Plugging back in after some hours will make it appear to run normally and again remove moisture but it will not shut off when the fan goes off (humidistat bad?) and the set-point is reached. Cannot leave plugged in due to safetty/fire/overheating concern. Have not found answer on this forum or any other so far.

Sep 15, 2013 | Frigidaire FAD704TDP Dehumidifier

1 Answer

Just stopped working. When I turn unit on the power light comes on for about 2 seconds then goes off, nothing else happens. Any ideas?


It may simply be that the water collection bucket is not installed properly or the air intake filter is clogged.

Turn the Master ON/OFF Switch to OFF and unplug the unit from the wall outlet. Remove the air intake filter and clean it, if necessary. While the unit is unplugged and OFF, remove the water collection bucket and reinstall it. Making sure that the bucket fits "squarely" from top to bottom, in the bucket holder. It must make contact with the bucket safety removal switch, to activate the unit. Once you have reinstalled the bucket, make sure the bottom of the bucket is not tilting downward.

If you cleaned the filter, be sure it is totally dry, before reinstalling it. Then plug the unit back in, turn the Master ON/OFF Switch to ON and if everything was done correctly, the unit should start and run. DO NOT OPERATE THE UNIT, WITHOUT THE AIR INTAKE FILTER INSTALLED.

Hope this helped you to troubleshoot and solve the problem.

Jun 18, 2011 | Maytag Dehumidifiers

1 Answer

Dehumidifier is running but not collecting water


Hi, If you have a dehumidifier that is not producing anywater then you are wondering what you need to do to get this thing to work for you. In some cases you may be able to do something and in other situations there may be nothing that you can do.

If you do not hear the compressor running and the unit says that the humidity in the room is higher then the setting, then you have a problem with your dehumidifier.

A few things that can cause this are:

The circuit board relay has gone bad…replacement of this board will often cost more then a new unit. This also is a very common problem with many dehumidification units.

The compressor has failed…if you hear a buzz for a few seconds, every few minutes, then you have a bad compressor or at least bad start components on the compressor. Either way it again is a costly repair.

If the compressor is running and the coils are not getting cold then you have a refrigeration system leak. Recharging or fixing these units is very difficult and is another costly venture compared to the price of a new dehumidifier.

If the compressor is running but the fan is not, this also will cause low water production and continual freezing of the coil.

If the compressor and the fan are running but the coil is totally blocked then you will get no water production. Air needs to be continually moved over the cold coil to get the water out of the air.

If nothing is running, then you may also have a control board failure. Or the humidity sensor or humidistat has gone bad which tells the machine to run. If the sensor says that the humidity is low enough then it will never run.

Also if nothing is running check the float switch or the bucket switch. Many of these switches are very touchy and if you do not have the bucket in place just exactly right it will not trip the switch to allow the unit to run. These switches often are more fragile then they should be and break easily. The good thing is that when available they are easy to replace and relatively inexpensive.

There are some parts available for a few brands, but with the prices for most of the parts that you can replace running anywhere from 40.00 – 80.00 dollars, replacement parts with labor to install them, makes a repair more then the few hundred dollar cost of many of these dehumidifiers.

As you can see there are quite a few things that can cause your dehumidifier not to work. Systematically go through the list and eliminate things to get to the bottom of the issue causing your problem and then decide if it is worth spending the money to try to fix the old unit. Only you can make that decision.

Aug 12, 2010 | Haier Dehumidifiers

1 Answer

Getting humidity to 30 percent


Hi,
A refrigeration type dehumidifier will not go much below 40%, just can't get the water to condensate below that at normal temperatures...
You will need to use a desiccant type unit to go to 30%..

http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

Apr 11, 2010 | Whirlpool AD35USS Dehumidifier

1 Answer

How use this deshumidifiers, people in the room or not?


Hi,
People in the room will not bother this unit nor will the unit bother the people...

Dehumidifier is running but no water is in bucket
http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

Apr 01, 2010 | Dehumidifiers

1 Answer

Unit runs but no water collects in bucket. Unit is over a year old and has run continuously that whole time. Up till now it has performed beautifully. Is it just worn out?


Hi;
Your dehumidifier is similar to a refridgerator or air conditioner. It has a compressor and coils, and a fan. Basically, the unit has to **** in air with it's fan, and as the humid air goes across the cold coils, the humidity condenses in to water. If the coils are not getting cold, they won't condense any water, or if the fan isn't running, or the coils are dirty. If you check your unit over, see if you can tell if anything isn't working. Make sure the control knob is set at the highest setting. If the compressor lost it;s refridgerant charge, and won't get cold, it isn't probably worth fixing

Nov 23, 2009 | Whirlpool 75-Pint Dehumidifier

1 Answer

Kenmore Dehumidifier Isn't Running


It sounds like you have power to the unit but a component is failing to start the system get an AC tech to check it.

Jun 08, 2009 | Kenmore 54501 Dehumidifier

1 Answer

KENMORE 70 PINT DEHUMIDIFIER


4681A20040R is the fan part #. Bought one on e-bay. Fixed the same problem.

Aug 18, 2008 | Kenmore 54701 Dehumidifier

1 Answer

M7DH45B2A Dehumidifier


The fall may have knocked out some wiring -- open the unit (remove back panel, then remove front by taking out screws inside) and see if any of the cables to the front panel or control board came out.

Jun 20, 2008 | Maytag M7DH45B2A Dehumidifier

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