Question about Maytag M7DH45B2A Dehumidifier

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Dehumidifier Maytag M7DH45B2A Fan Motor

I checked the motor and it was clean on the inside and out. I can turn the motor shaft manually. I also checked the fuse and it was fine. All the electronic parts appear in working order; the circuit boards are clean and clear. The fan just won't work on either high or low settings. There doesn't apear to be any undue burning of fan motor components to suggest a short circuit or burn out. Would it be worthwhile to buy a new motor or could there be another issue? Thanks.
Comment by fisherm456, posted on Jul 14, 2008 ALl the wiring is fine. The boards are fine. The fan wiring is fine both inside and out. Comment by fisherm456, posted on Jul 14, 2008 The fan blades turn just fine. I even took the motor apart and it's clean. All the wires are connected, the fuse is fine, the compressor works and all the bells and whistles work; it's just that the fan motor will not turn. What could be the problem? Thanks.

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Hi,
It gets a little tricky from here! If it were mine, and with my experience - I would try to measure for power going to the motor, but that may involve more dismantling. Dangerous voltages are likely to be present so don't attempt this if you are not qualified to do so! If there is power going to it, then logically the motor is defective. If there isn't , then it points to the control circuitry. In the former case a new motor might get you going again - if you can find one; if there is no power going to it then the fault lies elsewhere. If you are very lucky it might just be a dead relay on the pcb. Beyond that point I have learned over the years that some things are just not designed to be fixable :-( The pcb may have been made years ago in a factory on the other side of the world and we consumers are just expected to go out and consume a new one dehumidifier.

Hope this helps a little bit. D

Posted on Jul 15, 2008

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I have purchaced two maytag dehumidifiers M7DH45B2A either one works. I cleaned inside and out blew out the coils with air. Motor runs but will not take out the humidity.


You may have the humidity level set to high. Keep in mind, the higher the number on your LED screen, (if your units have LED display) the more humidity remains in the house. Lowering the numbers on the screen (to 45%), should have a better affect.

Hope this helps you. Please let me know.

May 11, 2011 | Maytag M7DH45B2A Dehumidifier

1 Answer

Fan motor


chk the wiring inside any short circute or burned one.

Jul 14, 2008 | Maytag M7DH45B2A Dehumidifier

1 Answer

The unit has power, all controls work. The machine "turns on" when the humidity level exceeds the level set. However, the fan or wheel or whatever it's called does not turn. I took apart the unit and...


I have the exact same problem. I've isolated it to the thermal fuse for the fan motor. This can be confirmed by jumping the black wire to the blue wire coming from the fan motor while the unit is running. Only problem I have is I haven't been able to locate the fuse yet.

Oct 21, 2010 | Maytag M7DH45B2A Dehumidifier

2 Answers

Fan motor making squeaking noise; sounds like bushing failure.


PLEAS IF SOUND REALY FROM THE MOTOR SOME OF THE MOTORS HAVE BEARING CAN BE REPLACED BUT IF IS BUSHING BETTER TO CHANGE THE MOTOR.

Sep 17, 2009 | Maytag M7DH45B2A Dehumidifier

1 Answer

Fan


For model M7DH45B2A Maytag 45 PINT Dehumidifiers
Parts for the unit. www.appliancefactoryparts.com
Part CRCFD5303-010 Fan - $19.99
Part CRCFD3000-030 Motor - $49.99

Parts for others are also available.

Sep 09, 2008 | Maytag M7DH45B2A Dehumidifier

1 Answer

Location of Maytag M7DH45B2A motor fuse


I'm fixing one of these too. Take the top off (follow the AC cord) and the fuse is on the PCB.

I am also looking for a better wiring diagram - the control panel on mine does not light up.

Aug 21, 2008 | Maytag M7DH45B2A Dehumidifier

1 Answer

Defective squirrel cage fan


Upon searching further, I found parts for the unit. www.appliancefactoryparts.com
Part CRCFD5303-010 Fan - $19.99
Part CRCFD3000-030 Motor - $49.99

Aug 03, 2008 | Maytag M7DH45B2A Dehumidifier

1 Answer

Maytag M7DH45B2A - Fan Motor


Hi,
The fan motors do occasionally get clogged up with fluff - especially if the machine has been operated without the filter screen installed. Also it is possible that some foreign object has fallen into the motor and is jamming it.

With the power off, check to see if the blower will turn when poked with a long plastic pointy thing :-)

If these suggestions do help you solve the problem, please give my reply a rating to help others judge my knowledge / guessing skills.
If they do not, please hold off on the rating and add a comment with more details so I can try to help you further. Cheers, D


Jul 12, 2008 | Maytag M7DH45B2A Dehumidifier

2 Answers

The fan fell apart on my M7DH45B2A and I was wondering how to find a part number for the fan to order a new one.


ApplianceFactoryparts.com has the replacement part for the "squirrel cage" for the motor or "fan". Use the Model number to find the parts.

Jul 10, 2008 | Maytag M7DH45B2A Dehumidifier

1 Answer

Heats up basement


Dehumidifiers and how they work
Heat pump dehumidifiers

Dehumidifiers use a heat pump (similar to an air conditioner's heat pump) or chemical adsorbents to remove moisture from the air without cooling the air.

A heat pump dehumidifier uses a fan to draw indoor air over a heat exchange coil. The coil is almost freezing. The water in the air condenses on the coil and is drained. A second heat exchange coil reheats the air, which the dehumidifier exhausts into the room.

A heat pump dehumidifier dumps heat lost from the compressor and fan motors into the air. It returns to the indoor air the heat generated by the dehumidifier turning water vapour to liquid. I got this off the internet

Jun 24, 2008 | Maytag M7DH45B2A Dehumidifier

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