DeLonghi DE40P Dehumidifier - Answered Questions & Fixed issues

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 dehumidifierDehumidifier is running but no water is in bucketheatman101 -===-

Maryann, your uinit may not need to be repaired. As, there are 5 basic, yet 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 you have an analog unit
set the humidity extraction level on 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.

I really hope the above information will help you to troubleshoot & solve the problem without having to make repairs. Thanks for choosing FixYa.

You shouldn't be using R22 anymore as it is being phased out and is bad for the environment. If it is not working, you might want to call in a pro to do the job. They'll have to hook up the dehumidifier to a manifold to essentially **** all the R22 out, ensure that there are no leaks, and replace it with a R22 substitute. It's going to take a few hours, so be prepared to pay $$$. The alternative is to bring it to a municipal recycling center or whoever that will accept it and buy a new one. You can't just throw it away.

Here is a link to the Owner's Manual, you're looking for. You can download and print the manual for future reference. Take good care of your model, perform routine maintenance, as required. As it no longer in manufacture. It has been replaced with a 45 pint unit. However, some parts your model are still available, if needed.

http://www.appliancefactoryparts.com/content/pdfs/109280.pdf


Hope this helped you.

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

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

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Hi,
A 40- 5- pint should do just fine...

heatman101

Hi,
Here is a tip that I wrote about that problem...

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

heatman101

typically happens when there is a lot of dust in air. Try cleaning it VERY well, which would mean, shutting it for a few days, letting it melt and dry off, then not only vacuuming it, but then take an air gun (or Air in a can) and get the dust off the coils. Obviously if there is a filter clean it, or replace it.
Check for bent fins on the coil. Most of the newer ones (and yours should as well) have an auto defrost to help with that.
Good luck

probably needs to be charged with freon

It's the deicing switch. Replace it.

any ideas why the pump or lack of knowledge on this product on how the pump turns on would be of great help.

Thanks
Mark

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.