20 Most Recent DeLonghi DE40P Dehumidifier Questions & Answers


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.

DeLonghi DE40P... | Answered on Apr 19, 2013


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

-===-

DeLonghi DE40P... | Answered on Sep 26, 2011


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.

DeLonghi DE40P... | Answered on Aug 14, 2011


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.

DeLonghi DE40P... | Answered on Jul 11, 2011


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 dehumidifier

Dehumidifier is running but no water is in bucket

heatman101

DeLonghi DE40P... | Answered on Mar 30, 2011


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

']\[\]

DeLonghi DE40P... | Answered on Mar 07, 2011


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

heatman101

DeLonghi DE40P... | Answered on Aug 29, 2010


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

DeLonghi DE40P... | Answered on Jun 26, 2009


probably needs to be charged with freon

DeLonghi DE40P... | Answered on Jun 21, 2009


It's the deicing switch. Replace it.

DeLonghi DE40P... | Answered on May 29, 2009


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

DeLonghi DE40P... | Answered on Oct 01, 2008

Not finding what you are looking for?
DeLonghi DE40P Dehumidifier Logo

31 questions posted

Ask a Question

Usually answered in minutes!

Top DeLonghi Dehumidifiers Experts

nm156

Level 1 Expert

4 Answers

Cindy Wells

Level 3 Expert

6063 Answers

Brad Brown

Level 3 Expert

18154 Answers

Are you a DeLonghi Dehumidifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

DeLonghi Dehumidifiers

  • DeLonghi Dehumidifiers

Most Popular Question

dehumidifier no longer takes moisture

  • Dehumidifiers
Loading...