20 Most Recent DeLonghi DE400 Dehumidifier Questions & Answers

I have a 40 pint and a 50 pint that are very similar. The 40 pint has the e3 error. Experimenting with the 50 pint, I found if I disconnected a particular sensor I got the e3 error. That sensor is a little can with two black wires (smaller than a AAA battery but shaped like that). It is attached to the cooling coils so must be a temperature sensor. This is not the little circuit board sensor mounted in the middle of the radiator in a plastic box/clip thing.I am now about to see that part to see if I can replace it.

The water tank is either full or not positioned correctly. Empty the tank and/or make sure it is positioned correctly (should fit perfectly and not bump out from rest of unit).

If you have it connected to the drain directly, your tank may still be filling up unless you have the PUMP button pressed (and PUMP is showing in the LED screen).

Good luck and please rate me.
-mark

Hi,

That code indicates a sensor failure and that part to fix it will cost around $200.00

You can darn near buy a new one for that... til you get it and take the time to install it...

heatman101

This can be caused by two things: The bucket is not inserted properly or the drain hole or tube inside the unit is clogged and needs to be unclogged.

When removing and reinstalling the bucket, make sure that it fits into the bucket holder "squarely" from top to bottom. When installed properly, the bottom of the bucket should not tilt downward at all.

To unclogged the drain hole or tube: Turn the Master ON/OFF Switch to OFF and unplug the unit.
Using an 18" long plastic Zip Tie or something similar (NO wire coat hangers, though) that is appropriately sized to fit into the drain hole or tube. Carefully insert the Zip Tie and work it in slowly. You will reach a bend in the tubing and you will gingerly, have to work it past this bend. When the Zip Tie either bottoms out or you run out of usable Zip Tie, slowly remove it while rotating (twisting) the Zip Tie. This will dislodge any clogs. Once you near the inserted end of the Zip Tie, be prepared for some water to follow.

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

If you live in the USA, call Delonghi Parts Dept (800) 865-6330 or click on www.delonghi-accessories.com

Hope this helps you. Please let me know.

Down. If it's pointing up ans was activated, water could go into parts of the unit, where it doesn't belong.

The E3 Code, indicates that the air intake filter needs to be removed and cleaned. Be sure the unit is OFF and unplugged before removing the filter. Filter cleaning should be performed at least once every two weeks, as part of Routine Maintenance.

Hope this helped you.

Hi,
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

heatman101


;';
'

Hi,
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

heatman101

;
';
;

Check this link to download the DeLonghi Dehumidifier Instruction Manual for DeLonghi de 400 Dehumidifier (PDF format)

Hope this helps (remember to rate and comment this answer).

the refrigerant r134a has leaked out,you need to have it recharged,this is normal for most de-humidifiers after 2 to3 years of use

Hi,

There are many reasons why a dehumidifier will not work or collect water.

Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifierDehumidifier is running but no water is in bucketheatman101

you can put the unit in maule

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