Question about Maytag M3DH30B2A Dehumidifier

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My dehumidifier is squealing

My Maytag dehumidifier runs frequently and from time to time starts squealing. If I smack the casing the squealing stops for a while. Sometimes it stops for a while temporarily.

I'm unsure whether it's a good idea to take the plastic casing off to see whether if there's any way to fix the problem inside.

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  • mark thompson Jun 04, 2008

    Same problem, fixed for a couple of months by adding hi-temp/ hi-pressure grease to the motor bushings. Temporary fix. Squealing returned and then the fan motor stopped working at all although it does spin freely. Suspect humidistat control now? Turning the control to run-full-time does not work, either. Light does come on so unit has power. Heard there was a recall on these units from someone who bought the product at BJ's. Any ideas?



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The fan motor is the cause it needs to be replaced

Posted on May 06, 2008


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Here is a tip that I wrote to help people to figure out what is going wrong with their dehumidifier

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