Question about DeLonghi DH40P Dehumidifier

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Not pumping I dot not know how to get the pump started to empty the bucket. I have a DE400P model. Thanks

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  • 340 Answers

Float switch . or bad pump

Posted on Jun 18, 2009

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I have an whirlpool gold ad50gpusb from canadian tire. The pump will no longer pump via the clear rubber hose and instead the water accumulates in the bucket. Do you know if there is a simple fix to...


For the others who follow

I have the same model, same problem on a 2 year old purchase made in 2014. This unit has a pump (and a hose) to drain the condensate.

The pump light started blinking about a week ago, turning cycling power worked for a while, until pumping stopped altogether.

After investigating:
-the hoses are not blocked but there was some algal growth in the tray which I cleaned
-the pump no longer pumps.
-my favorite parts suppliers and other on-line sources have no record of the model/parts etc.
-Called "whirlpool" consumer line in manual
-Whirlpool has been purchased by Garrison and that company has no parts for this discontinued model but did provide a phone number for the pump 800-799-0991. Unfortunately the cost of this small solenoid pump is $74.

I will drain the condensate via gravity to a floor drain as I don't see spending that much for something that broke so quickly and appeared poorly made..

Sep 24, 2013 | Dehumidifiers

1 Answer

Bucket is empty but it is beeping


Hi,

Here is a tip that explains what can be happening to make the dehumidifier showthat the bucket is full when it is not.

Dehumidifier Problem It shows Bucket Full

heatman101

Apr 08, 2011 | DeLonghi DE400P Dehumidifier Dehumidifier

1 Answer

Just received tne unit with pump. There is a hose in the collection tray area that is connected at one end to the unit but not the other. After 1 hour of running, water was coming from that hose and not...


If you look above the tubing, there's a little gray nub/cone thing. Slide the tube onto that and it should fix the problem. If you're trying to use the pump instead of the collection bucket, there are good directions in the manual.

Aug 13, 2010 | DeLonghi DE400P Dehumidifier

1 Answer

'bucket full' light on, but bucket empty


There is likely a switch operated by a float to turn that light on and turn off the compressor, sometimes manufactures use a rubber "O" ring on the float shaft and they can slip. take the cover off the pump and check the float or in some cases one of two floats are used. Once float turns the pump on and off and the second float shuts OFF the compressor and turns ON the full reservior light.

Jun 04, 2010 | Dehumidifiers

1 Answer

Dehumidifier is leaking rusty colored water onto the floor


The inside of those units are made of galvanized steel. They start to rust out after 2-3 years. I know because I have one. If you have the model with the water pump there is an inline filter before the pump that will get clogged with rust. I thought it was a quality unit but it is ****!

May 24, 2010 | DeLonghi DE400P Dehumidifier

1 Answer

Delonghi de400p dehumidifier does not work


if comp and fans running your out of freon or the compressor is not pumping more than likely out of freon and that means theres a leak in the sealed system high cost repair

Jul 03, 2009 | DeLonghi DE400P Dehumidifier

1 Answer

Delonghi de400p


same thing happend to me. I wasnt sure if it was the settings or me. I unplugged it for awhile, read thru the instructions turned it back on setting it according to the instructions and it began to work again. Not sure if it had to do with the unit being off for awhile or I entered the correct settings. Im just happy it began to run again

Jul 19, 2008 | DeLonghi DE400P Dehumidifier

1 Answer

Water bucket


If yours has a button/switch to turn on a pump, that will redirect the water to the drain. Sllee

Jun 28, 2008 | DeLonghi DH40P Dehumidifier

1 Answer

DH400P


I had a similar problem with the pump not working and the water flowing into the main drainage bucket instead. I had to disassemble the housing...not an easy project to reassemble...and found that the pump has its own smaller drainage tank with a float device, a pump pre-filter, the actual pump, then of course, more drainage tubes. The entire pump drainage system of components needed cleaned of accumulated, mucoid, slime! I cleaned the channel in which water flows into the pump's tank...located on the screen filter side of the dehumidifier. Then I moved to the other side of the dehumidifier and cleaned-out the entire pump drainage tank. Note that the pump's drainage tank only empties about 1/2 inch of water each time the pump activates. Thus, there is always alot of water in the pump's drainage tank. Thus, alot of time for slime to accumulate. Next, I cleaned off the float mechanism. I then cleaned-out the pump's pre-filter. Cleaning out the pump's pre-filter was paramount to the pump functioning properly and quietly! I checked that my pump was properly installed and NOT rubbing against its mounting so that it operated quietly. I added fresh water to the pump's tank several times to insure that the pump was working properly and that all slime was eliminated. Finally, I reassembled the housing...not an easy task! My pump now functions like new. All this work had to be done to insure proper function of the dehumidifier's pump system. My dehumidifier is only 11 months old. It is still covered by the one year warranty, but it is too expensive to ship the entire unit, as Delonghi requires you to do at your expense for them to fix it under warranty. You can be assured that I will check for future slime build-up to keep my dehumidifier functioning properly. The dehumidifier works great, it's just that it's high maintenance.

Jun 15, 2008 | DeLonghi DE400P Dehumidifier

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