Question about Whirlpool AD40USL Dehumidifier

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My Whirlpool AD40USL5 Dehumidifier is displaying P1 on the control panel. I am not able to find any information about this in the User Guide that came with my unit. Could you please tell me what this code means? Thank you.

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Here is a link to the Owners Manual for the model number you listed. However, it does not have a LCD display on the Control Panel, which would show the Error Code P1. This is a Kitchen Aid brand that was manufactured by Whirlpool with the AD40USL5 Model Number. This came directly from Whirlpool's website. Hope it helps you in some way.

http://www.kitchenaid.ca/assets/pdfs/literature/Use%20and%20Care%20Guide%20-%201187730.pdf

Posted on Apr 04, 2011

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What is wrong with a Westpointe dehumidifier when it stops removing water and displays P1? It will run this way for hours and kick in and work briefly once in a while on continuous.


Usually the P1 error indicates that dehumidifier needs to be defrosted. The unit has detected ice build-up on the condenser coils.

Unplug the dehumidifier for several hours. Then plug it back in. If the problem recurs, check that the fan that blows air across the coils is working properly. Make sure that the room is not colder than the operating range of the dehumidifier. If the problems continues to occur, you may have a refrigerant leak in the system. That will require a service call to repair the dehumidifier.

If the unit is under warranty, contact Westpointe. The manual I have for a Westpointe 65 PT dehumidifier, https://www.appliancefactoryparts.com/content/pdfs/136333-1.pdf, indicates the unit is covered through year 5 after purchase for a refrigerant system. For Warranty service, the contact point is Midea Consumer Service at 1-866-646-4332. If the unit is not under warranty, consider whether to replace the dehumidifier.

I hope this helps.

Cindy Wells
(I have seen a dehumidifier develop a refrigerant leak. It constantly froze before the leak was repaired and the refrigerant topped off.)

May 15, 2017 | Dehumidifiers

1 Answer

My fan and compreesor works on my 5 yearold whirlpool dehumidifier but no water collects and the display says e1 all the time


Hi, fusiti. We're sorry to hear about the difficulty with your Dehumidifier. Below are links to our Use & Care guides, Parts Diagrams, Troubleshooting information and the Service are of our website. We hope this helps! http://bit.ly/112Lu7q

May 16, 2014 | Whirlpool AD35USS Dehumidifier

1 Answer

I purchased danby dehumidifier less that 1 year ago and p1 is on most of the time. What can I do?


According to your Owners Manual:

P1 is part of a normal function of your dehumidifier. When your compressor is working it will build frost on the evaporator coils. When there is enough frost on the coils the unit will go into a P1 deicing program. This deicing cycle will last anywhere from 15-45 minutes. Once complete it will automatically resume normal function. The cooler the room the more often this function will turn on.

If you think it's still staying ON to long, contact Danby Consumer Help 800-263-2629

Hope this helped you.

Apr 28, 2011 | Danby DDR607EE Dehumidifier

1 Answer

Unit displaying p1 in the led window,and will not respond to keypad functions.


P1 indicates that the unit is in defrost mode, ie it's too cold.

Jan 24, 2011 | Danby DDR2509EE Dehumidifier

1 Answer

DDR4010E just bought and set up now a couple hours later the display reads:P1. what does that mean?


P1 is code for defrosting. Once it's done defrosting it should start operating

Oct 29, 2010 | Danby Dehumidifier

1 Answer

The display reads "P1" and I can't change settings. Can't find what "P1" means in manual. Can you help?


just type in the type of air conditioner on line when you log on and ask the computer or view functions for the ac when you doas i stated about enterig it online.

Oct 07, 2010 | Dayton 1DGX6 Dehumidifier

1 Answer

What does P1 mean on display?


Danby's Consumer Help Line (1-800-263-2629) is always busy. So, I called their General number: 419-425-8627. The receptionist transferred my call to their Service dept. My call was answered in 2 minutes.

The Service Rep. described the following code for my dehumidifier model (DDR657EE):
P1 = Defrosting: the unit will go into Defrost mode periodically to ensure that the parts are working at the right operating temperature. It should be in Defrost (P1) mode for only a brief period of time. If the unit is in Defrost (P1) mode continuously for a couple of hours (or more), then you should call Danby Service for further assistance.

He had no documentation of a P2 code for my model.

He also described other General Codes (applicable to most Dehumidifier/Humidifier models):
E1 = Not enough water
E2 = Not draining
E3 = Water temperature too cool
E4 = Overflow Switch activated
E6 / E7 = Problem with Temperature Sensor

I hope that helps.

May 16, 2009 | Danby Dehumidifiers

1 Answer

My model is DDR4009EE, after it run for a while, the display changed from RH to "P1",what does "P1" mean?


My Danby DDR657EE shows P1 periodically also. So, I called Danby.

Danby's Consumer Help Line (1-800-263-2629) is always busy. So, I called their General number: 419-425-8627. The receptionist transferred my call to their Service dept. My call was answered in 2 minutes.

The Service Rep. described the following code for my dehumidifier model (DDR657EE):
P1 = Defrosting: the unit will go into Defrost mode periodically to ensure that the parts are working at the right operating temperature. It should be in Defrost (P1) mode for only a brief period of time. If the unit is in Defrost (P1) mode continuously for a couple of hours (or more), then you should call Danby Service for further assistance.

He had no documentation of a P2 code for my model.

He also described other General Codes (applicable to most Danby Dehumidifier/Humidifier models):
E1 = Not enough water
E2 = Not draining
E3 = Water temperature too cool
E4 = Overflow Switch activated
E6 / E7 = Problem with Temperature Sensor

So, if you see P1 periodically (for brief periods), then it would be normal.

Also, here is a link to Danby's FAQ page for Dehumidifiers (which answers some common questions):
https://www.danby.com/faqs.php?cat=12

I hope that helps.

May 11, 2009 | Dehumidifiers

1 Answer

Control panel


Just found an owners manual for the sunbeam version - p1 = defrosting. It will restart after it defrosts.

http://www.sunbeammajorappliances.com/pdf/Dehumidifiers%20manual%2020070122.pdf

Mar 29, 2008 | Kenmore 53701 Dehumidifier

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