Question about Maytag M7DH45B2A Dehumidifier

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  • jm039104 Jul 30, 2008

    The unit has no power indication when it is pluged with electric outlet. No response at all.


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Hi - Thanks for sending it again. If the fuse is good, then it "must" be the starting capacitor under suspicion now. Induction motors won't start without them - they just sit still and hum quietly to themselves.

If you can't see these items elsewhere they are most likely hidden inside the casing. Take care if you try to open it - the bearings may be quite delicate. Bear also in mind that failure of the start capacitor may have caused the motor to overheat so killing the thermal fuse.
Hope this helps you a bit further. Cheers, D.

Posted on Jul 16, 2008

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Is there any way you could test the continuity of the fuse - or "jump" it temporarily - without heating it to over 130F, of course! Some thermal fuses can be broken without looking the part.

130F seems a very low temp... Can you post or send me the schematic?

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Fan motor

I can't imagine why a >thermal< fuse would be insulated as I thought they were designed to melt when the ambient temperature exceeded the stated value
There are some pics of typical thermal fuses here :-
I also have difficulty imagining why they would out such a component in a fan motor assembly - it's not the sort of thing that usually catches fire!
Equally, a non-thermal filament type fuse would normally be placed where it could be seen and replaced. I would expect it to be mounted on a pcb - soldered in, perhaps, but in an obvious place.
We are not allowed to exchange emails via, but if you wanted to upload that schematic to, and then post the download link here, perhaps I could take a look at the schematic myself.
Sorry this is taking so long to sort out!
Cheers, D.

If the fuse is not

Jul 15, 2008 | Maytag M7DH45B2A Dehumidifier

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