Question about Maytag M7DH45B2A Dehumidifier

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After 5 years of good operation, it now ices up immediately

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If your Indoor Coil is Freezing Up,
You need see if the blower runs if it does, Then shut it off and check your filter, indoor coil and blower wheel, to see if they are dirty, if they are, they need to be cleaned, if not then you are probably low on refrigerant. If the blower doesn’t run when you turn the switch to on then you need to check the blower and capacitor out.
If your not familiar with any of this then you need to call a service tech.

Posted on Sep 10, 2009

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Posted on Jan 02, 2017

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1 Answer

There is ice on the filter and the filter will not come out. Tried turning off so it would melt, but filter still stuck. It is summer so why is ice forming?


I have had a AD75UST0 WHIRLPOOL Dehumidifier for several years. I had mine ice up once or twice particularly on very high humidity days > 90%. Once it thawed out. I was able to remove the filter. Most likely it is due to dust getting on coils & condenser Or actually has a Freon leak. to resolve the dirty coils you can easily dissemble (that is remove front & rear cover) it to give coils and condenser a good thorough cleaning. It the coils and condenser are not at all dirty, then is not the cause of the icing. The units are typically not serviceable - i.e. a disposable small appliance.

Jun 02, 2014 | Whirlpool 75-Pint Dehumidifier

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Immediate ice build up on coils no water in tank?


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

Jul 10, 2011 | Goldstar Dehumidifiers

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Esco Oasis 2700L dehumidifier ices up. Is there a filter to be cleaned and if so, how to I get to it?


Hi,

The most common cause of frost and ice buildup on a dehumidifier is because the unit is operating in temperatures that are too cold. Many dehumidifiers are not equipped to run at temperatures below 65 degrees Fahrenheit.
To fix this problem, Position the dehumidifier in an area where there is at least one foot of clearance around the unit in order to allow for proper air circulation during its operation. Close all windows, doors and other outside openings to make sure your unit isn't attempting to remove moisture from areas outside of the immediate room. Determine the temperature of the room by checking a nearby thermostat or by using a hand-held thermometer.

Check the filter for dirt and buildup. Unplug the unit from the electrical source and check the filter by opening the filter compartment. If the filter is dirty, it will restrict airflow through the unit and lead to freezing. Soleus recommends lightly vacuuming the surface of the filter to remove dirt. The filter also can be washed in warm water if it is extremely dirty. Once clean, place the filter back in its compartment. Allow for the ice to melt and then restart your dehumidifier.





Jul 03, 2011 | Dehumidifiers

1 Answer

Humidifier is icing up during operation


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

vbn

May 20, 2010 | LG LHD45EL Dehumidifier

1 Answer

Ice forming on the to


Usually this happens for one of two reasons: 1) there is a problem with the refrigerant and/or compressor (like a little leak of refrigerant)
2) the room that the compressor is in is too cool (below the operating range of the dehumidifier)

If the unit is under warranty, call for service if you know the room is above the minimum operating temp. If it is a problem with the refrigerant, they will probably replace the unit.

I hope this helps.

Cindy Wells
(we have an LG dehumidifier and had to have it replaced when it was less than a year old - it was icing up in the summer. It still iced up in the winter (at times due to cold in the basement).)

May 01, 2010 | LG LHD45EL Dehumidifier

1 Answer

Coil Icing at times need operators manual


When mine iced over, i took it apart and sprayed all the inside with a hose. Then I put a fan on it for a few day.( make sure the electrical is dry). Got all the dust and dirt out. Re- assembled and works great now

Oct 28, 2009 | Dehumidifiers

1 Answer

Fan fixed but evaporator solenoid keeps activating at times


the purpose of the valve is to de-ice the evaporator and the valve is turned on by a timer usually. in normal operation, the evaporator builds up with ice (that is how water is extracted). when the valve operates, to put it simply, the hot gas is routed to the evaporator and hence melts the ice off

Aug 28, 2008 | Goldstar DH504EL Dehumidifier

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