Question about Maytag M7DH45B2A Dehumidifier

1 Answer

Temp and humidity levels are not correct

The temp is reading 32 degrees. The huuidity level is reading 35%. I know it is not 32 degrees in my basement. The unit will shut off with in a few minutes. Tried unplugging to reset. Still doesn't read the correct temp and humidity level. How do I get this to read correctly?

Posted by kathi peerboom on

  • 1 more comment 
  • rosedoctor Dec 12, 2007

    My dehumidifier is reading the wrong humidity. It claims the humidity is 35% when I have checked it with multiple meters and it is actually 55%. Is there a way to calibrate? Thank you.

  • Anonymous Jul 29, 2008

    Cannot get the humidity level to change - keeps reading 20 % and I know
    that's not right. Have checked the manual but no schematic shown
    and I don't know what I'm looking at when I take the back cover
    off. What does the sensor look like so that I can check it's not
    touching anything?



    Thanks

  • Anonymous Mar 29, 2014

    the problem lies in the humidity gauge, it is reading the percentage way too low and shutting down the unit, is there some way to disengage that? or correct it?

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  • 105 Answers

It sounds as if the temperature sensor probe is touching the cold coil inside. The sensor is located in the incoming airflow, in front of the cold coil. It must not touch the coil. This should be visible with the cover off. You can gently bent the sensor away fron the coil, 1/4-1/2" of clearance is plenty.

Posted on Jul 17, 2007

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1 Answer

Doesnt seem to be working and the code CH appears on the display. Fan turns on but not collecting water and its very humid/damp in the basement so its not the humidity setting.
There are 5 basic, yet solvable reason for what you described. Please pay particular attention to numbers 1 & 2..

1. The humidity extraction level is set to HIGH. Lower it to 32-35%.
.
2. Air intake filter is dirty or clogged. Turn unit OFF, & Unplug the
Unit, before removing to inspect & clean it, if necessary. If washed,
allow filter to completely dry before reinstalling. DO NOT operate
the unit without the filter.

3. Obstructed air flow. Maintain a minimum of 12 to 18" of clear air
space around the entire unit.

4. Cooling coils are dirty and need to be cleaned. Use warm water & dish washing liquid to
clean the coils. Rinse and wipe dry. Apply a light coating of WD40 to the coils.

5. Ambient air temperature at floor level is between 40 - 65 degrees.
dehumidifiers do not work well between those temperatures
(Unless, you have a Low Temp Unit*). This applies mainly to
where the air temperature at floor level is colder than at shoulder level
in basement applications. Raising the unit up off the floor,
onto a sturdy table, counter top, etc, that can handle the weight
of the unit, plus a full tank of water, will usually resolve this
problem.

* Your unit is not a low temp model.

If none of the above solves the problem, it may be a case of the compressor needs to be recharged with refrigerant gas or that the humidity condenser sensor has failed. These things usually occur in units that are 5 years old or older. It's rare in a unit younger than that. But, it can happen.

Hope this helped you to troubleshoot and solve the problem, as your model has been discontinued by LG. Thanks for choosing FixYa.

Sep 12, 2011 | LG LHD45EL Dehumidifier

1 Answer

My machine runs but it does not gather any water even though I know the humidity in the room is high. The humidity displays 60% room and it will not decrease to 35% set, even though the machine is running...
There are 5 basic, but solvable reasons for what you described. Of these 5 you have already completed 2 of them.

1. The humidity extraction level is set to HIGH. Lower it to 32-35%.

2. Air intake filter is dirty or clogged. Turn unit OFF, & Unplug the
Unit, before removing to inspect & clean it, if necessary. If washed,
allow filter to completely dry before reinstalling. DO NOT operate
the unit without the filter.

3. Obstructed air flow. Maintain a minimum of 12 to 18" of clear air
space around the entire unit.

4. Cooling coils are dirty and need to be cleaned. Use warm water & dish washing liquid to
clean the coils. Rinse and wipe dry. Apply a light coating of WD40 to the coils.

5. Ambient air temperature at floor level is between 40 - 60 degrees.
dehumidifiers do not work well between those temperatures
(Unless, you have a Low Temp Unit). This applies mainly to
where the air temperature at floor level is colder than at shoulder level
in basement applications. Raising the unit up off the floor,
onto a sturdy table, counter top, etc, that can handle the weight
of the unit, plus a full tank of water, will usually resolve this
problem.

If none of the above solves the problem, it may be a case of the compressor needs to be recharged with refrigerant gas or that the humidity condenser sensor has failed. These things usually occur in units that are 5 years old or older. It's rare in a unit younger than that. But, it can happen

I hope this helps you to further troubleshoot & solve the problem. Thanks for choosing FixYa.

Aug 17, 2011 | Maytag M7DH45B2A Dehumidifier

1 Answer

I've been reading the other questions on this website. Like many others, our 54501 dehumidifier turns on and all controls still work. We just cleaned the filter but it does not collect water. I read...
No, it may mean that you don't have the humidity extraction level set low enough. The lower the setting, the more humidity it will extract. Try setting the extraction level at 35%, to see if the compressor turns ON.

If yours is being used in a basement, the ambient air temperature at floor level is between 40 - 60 degrees. Dehumidifiers do not work well between those temperatures (Unless, you have a Low Temp Unit). This applies mainly to where the air temperature at floor level is colder than at shoulder level in basement applications. Raising the unit up off the floor, onto a sturdy table, counter top, etc, that can handle the weight of the unit, plus a full tank of water, will usually resolve this problem.

I hope this helps you further troubleshoot & solve the problem. Thanks for choosing FixYa.

Jul 25, 2011 | Kenmore 54501 Dehumidifier

1 Answer

Motor runs, but no water in collecting pan. also recently ' present humidity %' window reads 40% all the time.
There are 5 basic, but solvable reason for what you described. Please pay particular attention to numbers 1 & 2.

1. The humidity extraction level is set to HIGH. Lower it to 32-35%.

2. Air intake filter is dirty or clogged. Turn unit OFF, & Unplug the
Unit, before removing to inspect & clean it, if necessary. If washed,
allow filter to completely dry before reinstalling. DO NOT operate
the unit without the filter.

3. Obstructed air flow. Maintain a minimum of 12 to 18" of clear air
space around the entire unit.

4. Cooling coils are dirty and need to be cleaned. Use warm water & dish washing liquid to
clean the coils. Rinse and wipe dry. Apply a light coating of WD40 to the coils.

5. Ambient air temperature at floor level is between 40 - 60 degrees.
dehumidifiers do not work well between those temperatures
(Unless, you have a Low Temp Unit). This applies mainly to
where the air temperature at floor level is colder than at shoulder level
in basement applications. Raising the unit up off the floor,
onto a sturdy table, counter top, etc, that can handle the weight
of the unit, plus a full tank of water, will usually resolve this
problem.

If none of the above solves the problem, it may be a case of the compressor needs to be recharged with refrigerant gas or that the humidity condenser sensor has failed. These things usually occur in units that are 5 years old or older. It's rare in a unit younger than that. But, it can happen.

I hope this helped you and thanks for choosing FixYa.

Jul 23, 2011 | LG Goldstar LD65EL Dehumidifier

1 Answer

Unit no longer removes water/humidity from air. The filter had been extremly clogged up (now clean) but is fan suppossed to move when it's running ? If so - is it electric or belt driven ? Is...
Well, we know the filter was playing a role in it.. Good job on cleaning that. Depending on where you have the humidity extraction level set, the fan could run all the time (It's direct drive. No belt). I suspect if you lower the humidity extraction level to 35%, you will see/hear water collecting in the bucket after about 30 minutes to an hour of operation.

Also, maintain at least 18" of clear air space around the entire unit.

In addition, if you're using this in a basement Ambient air temperature at floor level is between 40 - 60 degrees. dehumidifiers do not work well between those temperatures Unless, you have a Low Temp Unit). This applies mainly to where the air temperature at floor level is colder than at shoulder level
in basement applications . Raising the unit up off the floor, onto a sturdy table, counter top, etc, that can handle the weight of the unit, plus a full tank of water, will usually resolve this problem.

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

Jul 11, 2011 | Kenmore 54501 Dehumidifier

1 Answer

Unit seems to not read correct humidity. only operates for short time(one minute or less) then turns off. i know the air is humid, + 90%
John, there are 5 basic, yet solvable reason for what you described. Please pay particular attention to numbers 1 & 2.

1. The humidity extraction level is set to HIGH. Lower it to 32-35%.

2. Air intake filter is dirty or clogged. Turn unit OFF, & Unplug the
Unit, before removing to inspect & clean it, if necessary. If washed,
allow filter to completely dry before reinstalling. DO NOT operate
the unit without the filter.

3. Obstructed air flow. Maintain a minimum of 12 to 18" of clear air
space around the entire unit.

4. Cooling coils are dirty and need to be cleaned. Use warm water & dish washing liquid to
clean the coils. Rinse and wipe dry. Apply a light coating of WD40 to the coils.

5. Ambient air temperature at floor level is between 40 - 60 degrees.
dehumidifiers do not work well between those temperatures
(Unless, you have a Low Temp Unit). This applies mainly to
where the air temperature at floor level is colder than at shoulder level
in basement applications . Raising the unit up off the floor,
onto a sturdy table, counter top, etc, that can handle the weight
of the unit, plus a full tank of water, will usually resolve this
problem.

If none of the above solves the problem, it may be a case of the compressor needs to be recharged with refrigerant gas or that the humidity condenser sensor has failed. These things usually occur in units that are 5 years old or older. It's rare in a unit younger than that. But, it can happen.

John, I hope this helped you to troubleshoot and solve the problem. Please let me know. Thanks.

Jul 06, 2011 | Haier HDN655E Dehumidifier

1 Answer

I have a Crosley Model # DCW405, spec.D40F-LCRF270. Last year the compressor would not kick in. I did some simple thing to get it to work. This year, i again cleaned the filter, plugged, unplugged, scooted...
It may very well be that you have the humidity extraction level set to high. Lower it to 32-35%. If you have a manual unit, set the control to Maximum. Since it's a basement application, raising the unit up off the floor on to a sturdy table or counter top that can handle the weight of the unit, plus a full bucket of water, may also solve the problem. As, the air temp at floor level is colder than at chest or shoulder level. Dehumidifiers do not work well at temperatures between 40 - 60 degrees F. Unless you have what's called a Low Temp Model. They are specifically designed for basement applications.

Hope this helped you to troubleshoot and solve the problem

Jul 03, 2011 | Crosley Dehumidifiers

1 Answer

What is the proper setting for the Temp &Humidity?
Set the temp level at whatever point your home's temperature is now. Lower the humidity level to 35%. If you don't have an LED screen on your unit, set the manual control to maximum.This way, you will extract the maximum amount of humidity and make your home more comfortable.

Hope this helped you. Please let me know. Thanks.

Jun 29, 2011 | Fedders A7DH45B2A Dehumidifier

1 Answer

One-year old LG humidifier (LD450EAL) runs but no water is being extracted from the air - the hose outlet is dry. The hose is connected properly, and the compressor sounds like it's running, not just...
Alan, it may simply be a case of several things, that can easily corrected at home.

1. The Humidity Extraction Level is set to High. Lower it to 32-35%.

2. Air intake filter is dirty or clogged. Remove, inspect the filter and clean if necessary. It it's a
Washable Filter, allow it to thoroughly dry before reinstalling it.

3. Obstructed Air Flow. A minimum of 12" to 18" clear air around the entire unit, must be
maintained.

4. The ambient air temperature at floor level is between 40 - 60 degrees F. This is particularly true in
basement applications. The air temp at floor level is colder than the air temp at shoulder level.
Dehumidifiers don't work well in that temperature range (Unless, it's a Low Temp model). Raise
the unit up off the floor on to a sturdy table, counter top, etc, that can handle the weight of the
unit, plus a full tank of water.

If you troubleshoot the 4 things listed above, it may quickly solve the problem. Please let me know. Thanks.

Jun 18, 2011 | LG Dehumidifiers

1 Answer

The dehumidifier machine is running however, not producing any water in the upper bowl.
The problem you're having with your dehumidifier, may be the result of one or more of the basic, but solvable problems and solutions listed below:

1. The Humidity Extraction Level is set to High. Lower it to 32-35%.

2. Air intake filter is dirty or clogged. Remove, inspect the filter and clean if necessary. It it's a
Washable Filter, allow it to thoroughly dry before reinstalling it.

3. Obstructed Air Flow. A minimum of 12" to 18" clear air around the entire unit, must be
maintained.

4. The ambient air temperature at floor level is between 40 - 60 degrees F. This is particularly true in
basement applications. The air temp at floor level is colder than the air temp at shoulder level.
Dehumidifiers don't work well in that temperature range (Unless, it's a Low Temp model). Raise
the unit up off the floor on to a sturdy table, counter top, etc, that can handle the weight of the
unit, plus a full tank of water.

If you troubleshoot the 4 things listed above, it may quickly solve the problem. Please let me know. Thanks.

Jun 18, 2011 | Danby DDR600R Silhouette Dehumidifier

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