Question about Maytag M7DH45B2A Dehumidifier

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Wont Work When I set the desired humidity level, the dehumidifier does not seem to follow instructions. For example, if I set it to 45%, it will work when its below that value and above that value. Sometimes, it will choose not to work at all. I tried unplugging it and plugging it back in, and I also played with all the buttons on it. What else could i do to troubleshoot? Please email me back at

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Re: Wont Work

If you haven't done so already, try removing and cleaning the inlet filter screen which is almost certainly just behing the inlet grille. If this is blocked with fluff then no moist air will get to the cold pipes, so little or no water will be extracted. There's also a chance that the humidity sensor is clogged with fluff, so fooling the system into thinking the room is pretty dry.

Hope this helps. If this "fixes ya", I'd appreciate a rating for my reply, If not, please delay the rating and add a comment with any extra info you have and I will try to think of something else.

Posted on Jul 13, 2008

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Part of the problem may be that you have the humidity level set to high. The fan runs constantly to move the air around. When the unit senses a humidity level higher than what you have it set for, the compressor turns ON. Once it's ON, if the humidity level is short lived, it turns OFF.

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Hope this helped you to troubleshoot and solve the problem. Please let me know. Thanks.

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