20 Most Recent DeLonghi DN40G Dehumidifier Questions & Answers

look for that tank stopper and pull it out, CALL US 718 486 7557 DeLonghi DN40G 40 Pint Dehumidifier

Unless the filter is totally warn out or destroyed, it's not necessary to replace it. As it is washable in warm water and mild dish washing liquid. Rinse and dry thoroughly before reinstalling it. Never operate the dehumidifier without the filter in place. Doing so can damage the unit.

If you need to replace it, in the USA call 1 (800) 865-6330.. In Canada Call 1 (888) 335-6644.
In Mexico call 800-711-8805.

I hope I was able to help you and thanks for choosing FixYa.

Think the problem is with a clogged tube running to the drain, rather than a faulty pump.

To test this theory, first turn the unit OFF & unplug it. Using an 18" long, appropriately sized, plastic Zip Tie. Carefully insert it into the drain hole tubing and continue to push it in unitil you reach a bend in the tubing. Gingerly work it past this bend until the Zip Tie bottoms out or your run out of usable Zip Tie. Then slowly pull it back out while rotating (twisting) it. This will help break up any clogs. As you reach the tip of the Zip Tie, be prepared as some water may follow. Plug the unit back in and turn the unit ON. Set the control to Pump Mode and monitor the drain for water flow.

I hope this helped you and thanks for choosing FixYa.

There are 5 basic, but solvable reason for what you described. Please pay particular attention to numbers 1 & 2.

1. The humidity extraction level is set to HIGH. Lower it to 32-35%. If yous is a manually controlled unit, turn the knob to Maximum.

2. Air intake filter is dirty or clogged. Turn unit OFF, & Unplug the
Unit, before removing to inspect & clean it, if necessary. If washed,
allow filter to completely dry before reinstalling. DO NOT operate
the unit without the filter.

3. Obstructed air flow. Maintain a minimum of 12 to 18" of clear air
space around the entire unit.

4. Cooling coils are dirty and need to be cleaned. Use warm water & dish washing liquid to clean
the coils. Rinse and wipe dry. Apply a light coating of WD40 to the coils.

5. Ambient air temperature at floor level is between 40 - 60 degrees.
dehumidifiers do not work well between those temperatures
(Unless, you have a Low Temp Unit). This applies mainly to
where the air temperature at floor level is colder than at shoulder level
in basement applications . Raising the unit up off the floor,
onto a sturdy table, counter top, etc, that can handle the weight
of the unit, plus a full tank of water, will usually resolve this
problem.

If none of the above solves the problem, it may be a case of the compressor needs to be recharged with refrigerant gas or that the humidity condenser sensor has failed. These things usually occur in units that are 5 years old or older. It's rare in a unit younger than that. But, it can happen.

Hope this helped you to troubleshoot and solve the problem.

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

The flashing pause light on your DeLonghi dehumidifier indicates that the unit is in a defrost cycle. During this time, the compressor shuts off and the fan continues to run in order to thaw any ice that may have formed on the coils. This process typically lasts for 10-15 minutes before the unit resumes normal operation. If the pause light continues to flash even after the defrost cycle is complete, it may indicate a problem with the unit's sensor or control board. In this case, it is recommended to consult the user manual or contact a professional for assistance with troubleshooting and repairs.

If the air conditioner works and is blowing out super chilled air, then the dehumidifier function should work. The function takes in warm moist air and passes it over plates which are marginally colder than the ambient air. The air condenses and drips into a collection tank, or some have drain hose for putting into a floor drain. After 8 years, it may need service and gassing up, but you may also have drier air than you think. Whether is works in AC Mode is the key.

The hose is supposed to be in the tank. Someone emptied the tank and forgot to put the hose back.

Apparently NOWHERE! Contact DeLonghi direct https://www.delonghi.com/en-int/products/comfort/air-treatment/dehumidifiers This search query should have shown lots of places, Maker direct, Amazon, eBay and Appliance parts suppliers like Part Select dot com. It's very odd. https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ALeKk00f9Jx3klLUl0dKNUo5ffEHVuQLMA%3A1612057058213&ei=4gkWYNW0DJWq1QGmg6TQAg&q=DeLonghi+DN+125+R+Dehumidifier+replacement+filter ..

Some dehumidifiers have provisions for connection of an ordinary garden hose to drain into a tub, a standpipe, or a sump pit.

Not sure. Might have a blown fuse or bad capacitor. Here are some DIY steps: https://www.manualslib.com/manual/606569/Delonghi-Dehumidifier.html?page=7#manual https://www.hunker.com/13408722/delonghi-dehumidifier-troubleshooting https://www.veranda-interiors.com/dehumidifier-runs-but-wont-collect-water https://www.delonghi.com/en-us/customer-service

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.

all this info is in the manual. Either you threw it away or are a person who does not like to read.

The tank may be full. Your dehumidifier has a safety device that turns off the dehumidifier when the water tank is full. Usually the tank itself either presses against a switch or there's a device connected to the tank that triggers a switch when the tank is in place and full.

If you've emptied the tank and the unit doesn't run, inspect the place where the tank rests to see if there's a switch or mechanism that's not being activated. You may be able to turn it on with a simple flick of your finger.

Usually happens when the float valve is stuck in the down or up position try wiggling the handle to release or if the collection bucket is not sitting perfectly on the safety switch has to be down square I have the delonghi dem10 model always empty and unplug before checking

Dear Heemin, From the wording which you have used, it appears you think you are talking to the DeLonghi company. You are not. You are speaking to "fixya:". Please contact DeLonghi or one of it's dealers by finding their access information on your computer's search engine. God bless your efforts.