Question about Maytag M7DH65B2A Dehumidifier

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Maytag m7dh65b2a freezes up ,

The machine does not freeze to the point of stopping but it continues to run with ice on the coil and does not stop to defrost.

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Found the instruction book and by reading the setting it allowed the machine to shut off before it freezes up.

Thank you.

Posted on May 29, 2009

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1 Answer

The Compressor on my Maytag M7DH65B2A quit running, I brought it to my shop and noticed corrosion and an oily residue on the sensor with the metal clip. Looks like the corrosion caused a hole in the coil....


This is a common problem with most dehumidifiers, not matter who the manufacturer is. The best way to prevent it is routine maintenance. Especially when you stop using it for the season. Dismantle it and clean the unit thoroughly. Putting a light coat of WD40 on the coils and contacts will help abate corrosion during the off season. If you are in an area where you use the dehumidifier continuously , then you should step up your routine maintenance to every 6 months. Cleaning the filter regularly, will help expand the dehumidifiers life span. By the way, the model you listed was manufactured by Fedders for Maytag.

Keep up the routine maintenance.

Apr 06, 2011 | Maytag M7DH65B2A Dehumidifier

1 Answer

THE COIL IS ICING OVER


Hi,

Here is a tip that I wrote that will help you understand why and what you cando with a dehumidifier that ices up.

Dehumidifier is Freezing up and not working

heatman101

Oct 04, 2010 | Maytag M7DH65B2A Dehumidifier

1 Answer

Dehumidifier ice buildup on coils drain is clear.after running 15


Hi,
Your dehumidifier is very slowly leaking refrigerant...
This causes the coils to get too cold.....
The chances of finding this leak are slim to none...
Also would cost more then the machine is worth...
Junk this one and buy a new one...
Wish I could give you better news...

heatman101

Apr 12, 2010 | Maytag M7DH65B2A Dehumidifier

1 Answer

Compressor runs continually and cooling coils ice up but it doesn't defrost.


probally has lost some charge on the refrigerant. Low charge will ice the coil. Unless you are operating this at low temperatures. The ones I have seen do not have a defrost on them

Jan 14, 2010 | Maytag M7DH65B2A Dehumidifier

1 Answer

Coil Freezes up. Filter Clean. Temp is low 60s.


Unless you have special model, that's what happens at 60 or less. defrost over a drain (it won't run into the bucket) and move to wamer location or face a electric space heater 2-3 feet from it

Dec 02, 2009 | Maytag M7DH65B2A Dehumidifier

1 Answer

Icing up even at the lower setting


Hi,

Here is a tip that I wrote that will help you understand why and what you cando with a dehumidifier that ices up.

Dehumidifier is Freezing up and not working

heatman101

jhhj

Sep 25, 2009 | Maytag M7DH65B2A Dehumidifier

2 Answers

It keeps icing up even at the lowest #1 setting


is the filter dirty or is the air flow not as much as it used to be - low freon pressure - low air flow causes a/c units - dehumidifiers to ice up - if fan is running normal are the fan blades dirty

Sep 25, 2009 | Maytag M7DH65B2A Dehumidifier

2 Answers

P1 code displayed in LED


Condenser coils do not freeze, it is the evaporator coils that freeze. If it is icing up then the setting is too low for the area it is in, basically the humidistat will never be satisfied so it will run continually and end up freezing the evap coils, the coils could also freeze if the filter is dirty or there is an air flow problem.

Apr 13, 2009 | Dehumidifiers

1 Answer

Fedders dehumidifier freezing


There was a clip (rusted off) that held mine to the evaporator coil. I used a wire tie to hold it between 2 evaporator coils.

Aug 16, 2008 | Maytag M7DH65B2A Dehumidifier

1 Answer

Dehumidifier model M7DH65b 2A


Its too old where you are running the appliance - lift it up in the air or raise the heat in the room. This is *not* a low-temp dehumidifier.

Jun 09, 2008 | Maytag M7DH65B2A Dehumidifier

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