Question about Kenmore 54501 Dehumidifier

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The dehumidifier became completely iced up. When I took it apart the control circuit board seems to be damaged.

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DEHUMIDIFIER TURNS ON PUT HUMMES AND TOP GETS HOT--SEEMS LIKE COMPRESSER DOESN'T KICK IN- ARE THE TWO CIRCUIT BOARD PARTS TO BE CONNECTED INSIDE ???? MINE WEREN'T WHEN I TOOK OFF FRONT CASE


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

Sep 06, 2011 | Dehumidifiers

1 Answer

My dehumidifier is not working. The control panel lights-up, but its stuck on 70% humidity and won't adjust down. I took it apart and noticed burnt marks next to the circuit that controls the humidity....


I'd say you're right on target. In which case, although the unit was manufactured my Whirlpool for Sears under their house brand, Kenmore. You can find the part(s) online at Sears Parts Central
http://www.searspartsdirect.com/partsdirect/index.action . If you can do the replacement yourself, you'll really save $$ on labor.

Hope this helped you. Please let me know. Thanks.

May 30, 2011 | Kenmore 54701 Dehumidifier

1 Answer

Ice build up got my curiousity. took off the front cover to find an electrical piece on the tray wire attatched. doesn't seem to plug into anything. wish i had the specs.


Its a condensation sensor...senses "short" circuit conditions like...ice or ionized water.

"Defrost" The circuit board...it opens up and easily cleaned with 90% rubbing alcohol...use with care...(no flames or sparks....no power ..all safety precautions, etc...)

Reassemble and reset dehumidifier per unavailable service manual. If you received one, would love the link!

Otherwise (unplugged) push power button and plug in appliance. Will power cycle and run self test.

Hopefully it works by now!

Mar 14, 2011 | Dehumidifiers

1 Answer

Comfort-aire BHD-651 Dehumidifier broken after power outage


Start with the outlet they are plugged into - any power there?
The only solution I can suggest is to take it apart and check the wiring for any burned or shorted wires.
Also check the control circuit board - most have a small glass tube fuse on them. It is possible it was blown when the house was hit.

Aug 24, 2009 | Comfort-Aire BHD-651 Dehumidifier

1 Answer

Error Code CH 01


I have a Comfortaire BHD501 dehumidifier. A couple weeks ago I noticed ice building up on top of the unit,so I unplugged it to defrost. I plugged it back in and it worked until I noticed the "CH" "01" code. It would run a few seconds then shut off with that code showing. I took off the front of the unit and noticed rust on some of the metal parts. Then I took the cover off the circuit board for the front read out. I noticed corrosion on some of the solder points. When I looked closer at the plastic cover for the circuit board I noticed a small burn mark. The water from the melting ice must have run behind the cover and shorted out the circuitboard. At this point I don't know if new boards are available.

Jun 26, 2009 | Comfort-Aire BHD-501 Dehumidifier

1 Answer

Dehumidifier icing up - no defrost cycle


Hi,
The unit may be leaking freon...
Here is a tip that I wrote that will help you understand why and what you cando with a dehumidifier that ices up.

Dehumidifier is Freezing up and not working

heatman101

Jun 23, 2009 | Fedders A7DH65B2A Dehumidifier

2 Answers

Kenmore model 580.54701 70 Pint dehumidifier


Evaporator fan is not turning on - a problem with almost all dehumidifiers... probably on this unit (being so new) it's the control circuitry (in the circuit board) which switches the fan on...
I have the same unit with the same problem)

Good luck!

Sep 07, 2007 | Kenmore 54701 Dehumidifier

1 Answer

Will not shut off


My unit is a Fedders A7DH65B2A and your Maytag unit was made by Fedders and is just like mine w/ different label... I've purchased two of these units (one for me & one for my father-in-law) and they both quit pulling moisture from the air (but ran constantly) about 1 month past the 1yr warranty. My unit also acted really strange one day when the problem was occurring - it flashed on & off erratically and wouldn't power off unless I pulled the power cord. In short, I took it apart and found several issues and eventually figured out the chain of events that led to this: 1) The thermistor went bad and the unit could no longer sense when the evaporator coil started freezing up (normal situation that the unit should detect & then do a defrost cycle). As a result, the evaporator coil turned itself into a big chunk of ice (can see by removing the air filter and looking into that slot at the coil (looks like a radiator). 2) the big block of ice on the coil grew large enough to start making contact with part of the plastic housing above the evap coil that's used for the power control circuit board. The plastic in that area then got ice all over it and since it looks like a little tray, it will hold water (when the ice thaws) and then the power control board will be sitting in a puddle of water (or ice - either will cause malfuntions like not being able to turn the power off using the front panel switch). 3) the puddle of water in the power control board tray caused this circuit board to corrode (happens very quickly when the unit is plugged in since electricity accelerates this kind of thing...). So... a poor quality thermistor (this straps to the bottom right side of the copper pipe that loops out & back in to the evap coil and has a wire coming out of if) caused premature defrost circuit failure. This caused a big block of ice to form where it shouldn't be. The ice caused condensation/moisture/ice to form on/under the power control circuit board and corroded the circuit board and caused erratic power control issues. RepairClinic.com had a replacement sensor board (included all sensors - yes, the thermistor too...) so I purchased it (~$40) and used only the new thermistor off of it to plug into my original sensor board (and strapped it back to the evap coil w/ the chrome looking clip that was already there). Problem fixed! Well, almost... I did have to clean the corrosion off my power control board as well, but it survived luckily. After doing this to mine, my father-in-laws unit experienced similar symptoms. I did the same fix to his and presto... fixed. Cheap low quality thermistors on these units. I need to find a higher quality replacement thermistor before round 2 happens on each unit. Good luck!

Apr 29, 2007 | Maytag M7DH65B2A Dehumidifier

2 Answers

A7dh65b2a


Normal operation, the unit has sensed icing and is in the defrost mode (compressor off and fan on high). When the ice melts normal operation will resume.

Dec 07, 2006 | Fedders A3DH30B2A Dehumidifier

2 Answers

Icing damage


You need to have the r22 charged... As stated above, if its low on r22 then it will ice up... no dehumidifier should ice up.... call a repair guy or better yet, buy another one... good luck.

Dec 04, 2006 | Maytag M7DH65B2A Dehumidifier

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