Question about Maytag M3DH30B2A Dehumidifier

1 Answer

Compressor not working

Our compressor was not working so I looked on your website for hints and we did a few of them. Finally we uncovered the defrost switch from the black putty and tapped it a few times and the compressor began to work. We put it all back together and of course it won't work now. Any suggestions?

Posted by on

1 Answer

Re: Compressor not working

I got it!
Just put the defrost switch away. Maybe it's out of order, and reports a wrong temperature. Or go to get a new one.

Posted on Apr 13, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Why does compressor continue running, even with dehumidifier turned off?

Hello Bernard, thank you for your post!
I see that you are experiencing an issue with the Frigidaire dehumidifier, FAD704DWD, compressor consistently being on. This could be a possible issue with your control panel or sensor. Since it could be any one of these underlying issues I would suggest contacting the manufacturer for further assistance. Hopefully this information is helpful to you. -Matt

Feb 16, 2016 | Frigidaire a/c fad704dwd 70 pint...

1 Answer

Unit keeps trying to run, but stops, then trys again. this happens 2 or 3 times until unit finally starts.

Hi, The compressor is taking a few tries to start...the capacitor is probably bad...this does not give the compressor the kick it needs to get started...
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


Sep 28, 2010 | Haier 45-Pint Dehumidifier

1 Answer

Compressor running very hot but almost no cooling. Fan running

make sure the coils are clean both evaporator and condenser,then if there is a capacitor in the motor circuitry,check this,finally if the coils frost,then clear up and frost and clear up time and again,this is a sign of low refrigerant R134a,and this also will make the compressor run hot

Apr 09, 2010 | Haier 45-Pint Dehumidifier

1 Answer

There are power surges every few minutes that last for a few seconds. Other lights on the same circuit dim. This is really a Hampton Bay HB40 which I understand is the same unit. What can I do?

it sounds like the compressor is trying to start. if it hums and clicks then either the compressor relay or the compressor is bad. find the compressor and tap on the relay cover with the end of a screw driver. if it starts then change the relay

Dec 03, 2009 | Fedders RDG40 Dehumidifier

1 Answer

I am having Daewoo refrigerator Model DIR220. When I switch on the refrigerator the compressor starts after about 3minuites and stops in few seconds. fan motor works continuously. As the compressor stops...

the compressor has an internal overload to protect it from overheating. the compressor is cooled by the refrigerant passing over it. It could be a bad compressor,, bad charge of refrigerant, or simply dirty coils not allowing air movement

Nov 26, 2009 | Dehumidifiers

1 Answer

01% humidity

When you push the power button, the blower fan comes on. In a few minutes you should hear a second "click"--that is your compressor starting. Do you hear that second click?

The compressor is located in the rear bottom on the right side looking at the machine. After you press the start button and the blower fan comes on, bend over near the back of the unit and listen for the "click".

Sep 06, 2008 | Kenmore 54501 Dehumidifier

1 Answer

The compressor only turn on once (GE AHH40LHG1)

before you go to fix it, what is the setting it is at? What is the tempurature of the room it is in? If the setting has been satified the unit has done it job and if it is too cold in the room it will not operate properly either.
Sgt 48

Jun 06, 2008 | GE AHG40LJ Dehumidifier

1 Answer

DH30 Dehumidifier Compressor Does not Operate

I just picked one up at a tag sale, seller said it worked sometimes. Seems to have the same problem as yours. I took the time to tweak all of the connections and then re-soldered the control board with no luck. I finally disconnected the humidity control and it worked fine. By disconnecting the humidity control the unit defaults to it's highest setting and you have to unplug the unit to turn it off. Conclusion so far is that the humidity control rheostat is bad.
Note: Now while running the fan runs continuously and the compressor cycles on and off every 10 to 15 minutes. This may to be normal since the unit appears to be doing its job and I'm not sure how it is supposed to run since a purchased it broken.

Aug 05, 2007 | LG DH30 GoldStar Dehumidifier

3 Answers

Compressor is not working

Try gently tapping the compressor a few times -use a wooden stick or similar to avoid damage -sometimes that is all that's needed. There are however many other possible reasons for a compressor not to start - most have their own fuse/controller assembly (sometimes this is very obvious inside the case, often a car spade type fuse which is worth checking visually), and there are cut-outs that will stop the compressor if it is low on gas, although usually it will start first for a few seconds if this is the case. Sorry, but the ( website is down at the moment, but try it again later and you should find their troubleshooting and support is good. Hope this helps :)

Mar 03, 2007 | Maytag M3DH30B2A Dehumidifier

Not finding what you are looking for?
Maytag M3DH30B2A Dehumidifier Logo

Related Topics:

204 people viewed this question

Ask a Question

Usually answered in minutes!

Top Maytag Dehumidifiers Experts


Level 2 Expert

283 Answers

Bill Long

Level 3 Expert

571 Answers

Daniel Phillips
Daniel Phillips

Level 2 Expert

63 Answers

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

Answer questions

Manuals & User Guides