Question about Maytag M7DH45B2A Dehumidifier
I have the digitial dash and it doesn't light up or turn on. Is there a reset button on this unit or has a electronic board gone bad?
Use an amp meter, each part has positive and negative charges. a small reaction will let you know which ones work or if both works.
Posted on May 17, 2009
Hi, i would recommend checking the terminal block. this is the electrical junction box. your ac power cord is soldered or screwed directly into this device. make sure this device is not burned and make sure the power cord is screwed or soldered correctly. any lose or separated parts here will interfere with the current flow and will not allow proper power to be distributed.
You can locate this terminal block by following the power ac cord into the dehumidifier. it will connect directly to this device, check the screws and solder joints carefully for burn marks and lose or cracked joints.
Posted on May 15, 2009
3) Remove the cover panel.
4) Look for ice. If you see any ice blocking parts, let the ice melt and do not use the unit until the room temperature exceeds 65 degrees Fahrenheit (most dehumidifiers are not designed for use in colder spaces and may freeze up). Many people find that, by unplugging the unit and waiting about 30 days into the season, the problem is solved.
5) Remove and test the overflow cutoff switch.
6) Remove the humidistat and check it. Replace it if necessary.
7) If the unit still doesn’t work, call a repairperson—the compressor motor or the relay and overload switch may be the problem.
Posted on May 15, 2009
There is no reset button in dehumidifier units,but if there is no power then two possibilities before considering whole board bad
1)first check out connecting the unit in another power outlet ,may be the power outlet short where its actually connected.
2)there is a small 3amp fuse on the main power suppy board.mostly that fuse blows out before the board going bad.the fuse is actually placed on the board to save the board from blowing out if any minor short circuit occurs.but if the short circuit internally occured is major then its possibily the board.
you can get the board at
if the fuse is blown then the cost of fuse is $1.it will be easily available at local electronics shop.
so check out this 2 possibilities before getting the replacement board.
please do rate the solution.thank you for using fixya.keep updated.thanks.
Posted on May 09, 2009
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Posted on Jan 02, 2017
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