Top 20 DeLonghi DE400P Dehumidifier Questions & Answers

In the price range, most of the comparable united are the same under the skin. I like whirlpool since replacement parts are widely available.
before you condemn the unit, check three airflow and the temperatures of the suction and discharge tubes a few inches from the compressor. If the discharge is hot and the suction is cold, the circuit is probably still whole.

Not sure if this will help... http://www.delonghi.com/Global/InstructionManuals/EN/EN-5714810371.pdf http://www.delonghi.com/Global/InstructionManuals/EN/EN-5714810461.pdf

If you look at the gray plastic part at the top, there's this gray nub thing. Slide the tube onto that and your problem is solved.

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

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There's a pointy gray nub above the end of the tube. Slide the tube onto that and it should fix the problem.

First of all, here is a direct link to the User's Manual for your model of dehumidifier:

http://web1.dlservice.org/dlservice/dataload/istruzio/A2-5748013200.pdf


To view the Owner's Manual with Operating Instructions just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the information at the website indicated and the contents of the Owner's Manual.

You may need ADOBE READER installed on your computer to read PDF documents.
You can download this free at WWW.ADOBE.COM if necessary.
Click on the DOWNLOAD ADOBE READER button on right side of the ADOBE home page when you get there, then follow the onscreen instructions to install the software on your computer.

I hope that was helpful to you, good luck and take care.

If you choose to rate this solution by clicking on the YES THIS WAS HELPFUL icon, I thank you very much for your time and consideration.

Joe.

There's a small gray nub attached to the plastic above it. Slide the tube onto it and it should fix your problem.

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.

Welcome to FixYa
Dehumidifiers collect the water that has been removed from the air in a collection tank located at the bottom of the unit. The tank should be emptied regularly to avoid spilling. Empty the tank before the water level gets too high. Some dehumidifiers feature a continuous drain capability that allows you as the user to install a drain hose onto the unit that will direct the water to a floor drain so you will never have to empty the accumulation tank.
Not Collecting Water:

• Check the number on the "Room" humidity display. If the number is less than the "Set Humidity" number, the machine is not drawing moisture out of the air. The dehumidifier is functioning normally.
• Increase the "Set Humidity" number by pressing the "+" button. The higher the setting, the more water the unit will draw into the water-collection bucket.
• Turn off the power and pull the filter out of the right side of the dehumidifier. Clean the filter in warm, soapy water, shake it dry and place it back in the dehumidifier. If the filter is clogged with dust, dirt and debris, air will not flow through the machine.

Start the unit on the lower fan setting, at a humidity level of around 60%.Then adjust the humidity level to normally use it.
After vacuumed the filter-not work-use fingers to pick lint off the filter, and ran a BIC safety razor over it as well, to try and get more out of the filter. You can also wash the filter in warm water, and leave it to dry over night. Don't put it back in till completely dry.
You may also Refer this Instruction Here
I hope you got an idea...thanks for Contacting FIxYa...

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 ****!

Hi,
The E3 error indicates that a sensor has failed.
The part from DeLonghi costs about $200.
If the product is under warranty, I would suggest calling the manufacturer for replacement part.
Thanks for using Fixya.
Good Luck and have a nice day.

If you look above it, there is a gray nub. Slide the tube onto it and it should fix the problem.

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

low on freon is the compressor running?

Hi,
There are many reasons for a dehumidifier to 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
http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

I have the same problem on ocassion.
I just remove and reseat again , making sure the front of the tank is flush with the unit. sometimes a little more push in does the trick

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.

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

http://www.manualnguide.com/download/manual-guide/delonghi-de400p-dehumidifier-owners-manual.html

What I found was that the evaporator coil has steel endplates that flake rust off into the resevoir. This clogs and destroys the pump.