Question about Maytag M7DH45B2A Dehumidifier

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Dehumidifier' problem We are having trouble with our Maytag dehumidifier. The power on the unit is still working, and all lights/temperature/humidity readings are still displaying. The problem is water is not collecting in the basket - seems to not be taking water in. When we check, basket is completely dry. Any suggestions? It really bugs us that we may have to buy a new one, since it's only a few years old - hope it can be fixed. We thought we'd be getting better quality since it's a Maytag.... Thanks so much!

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1. Very few companies manufacture their own dehumidifiers. 2. Due to cost concerns, the coils are made of steel (not something like stainless steel) and will rust / corode, causing refrigerant leakage, often times after only a couple of seasons. 3. Maytag is not the Maytag of 15 years ago. They cheapend their product to lower cost, looking for increased sales, and have been bought out by Whirlpool.

Posted on May 27, 2010

  • Carl Schulzetenberg
    Carl Schulzetenberg May 27, 2010

    PS. Repair of the sealed refrigerant system is cost prohibitive if the unit is no longer covered by the manufacturer's warranty.

    I'd look for a long warranty, or consider a service contract, and make sure there is someone nearby who will service that brand, or be willing to replace the unit every few years.

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1 Answer

It runs but no water is coming into the tank


There are 5 basic, but solvable reasons 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%. If you have an analog unit
set the humidity extraction knob on Maximum.

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 ro troubleshoot & solve the problem. Thanks fr choosing FixYa.

Aug 16, 2011 | Maytag M7DH65B2A Dehumidifier

1 Answer

Fan running..just not dehumidifying all of a sudden...Maytag+45-Pint+Dehumidifier+M7DH45B2 7 yrs old


Todd, 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%. If you have a manually
controlled model, set the humidity extraction level on Maximum.

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 connenser sensor has failed. These things usually occur in units that are 5 years old or older.

I hope this helps you to troubleshoot and solve the problem.

Jul 09, 2011 | Maytag Dehumidifiers

1 Answer

The dehumidifier does not collect any water, the fan is running and I can hear the compressor kick on and briefly run 10-15 seconds, The fan runs continuously.


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%. If you have a manually
controlled model, set the humidity extraction level on Maximum.

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 troubleshoot and solve the problem.

Jul 08, 2011 | Maytag M7DH45B2A Dehumidifier

1 Answer

My Maytag dehumidifier is on for about a week and very little water gets out of the hose. The humidity rate does not go down. What is the probleme please? Thanks Bernard Parent


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%. If you have a Manual Control
Unit, set the humidity extraction knob to Maximum.

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.

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

Jul 06, 2011 | Maytag M7DH65B2A Dehumidifier

1 Answer

It runs but does not extract water


Susan, 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% If you have a manually
controlled model, set the humidity extraction knob to Maximum..

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 troubleshoot & solve the problem.

Jun 22, 2011 | Maytag M7DH45B2A Dehumidifier

1 Answer

Maytag Model M7DH65B2A will not dehumidify and only the fan blows cool air but not taking humidiity out of the air. How should the dehumifier be fixed?


Martin, you may not need to have it repaired if you check and troubleshoot, these 5 basic things that can cause this problem. All are solvable. Please take note of # 1.

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, remove and 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 F. Dehumidifiers do not work
well between those temperatures (Unless, you have a Low Temp Unit). This applies mainly to
basement applications, where the air temperature at floor level is colder than at shoulder level.
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 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. Please let me know. Thanks

Jun 20, 2011 | Maytag M7DH65B2A Dehumidifier

1 Answer

Our Maytag dehumidifier is not absorbing water. It's running and we have rebooted it many times and it's still not collecting water. The model # is M7DH45B2A*A, serial #DR891932099W. I don't...


Several things can cause the problem you describe. Some have obvious solutions, others will require some troubleshooting on your part.

A dirty or clogged filter makes it difficult for the unit to function as it should.

The humidity extraction setting is set to high for the humidity level in your home. The lower the setting, the more humidity it will extract. 35 to 4% is an ideal setting to get started. If your unit does not have an LED display, you want to use the MINIMAL Setting.

Obstructed air flow around the unit. 12" Minimum free air space is required all around the unit.

The unit will not extract humidity.moisture if the ambient air temperature at floor level is between 40 & 60 degrees F. Unless, you have what's called a low temperature unit.

If none of the above solved the problem, here's an in home test, to see if you need repairs: Move the unit to the bathroom, turn the unit ON set the humidity level at it's lowest setting. Turn the shower ON hot enough to generate steam. Do not turn on the bathroom's exhaust or leave a window open. As you exit the bathroom, close the door and do not return for at least 20 minutes.

After returning to the bathroom, turn the shower OFF and allow the unit to run for 5 more minutes. Then check the bucket for signs of water. If you find any, the unit is working as it should. Which would indicate that one of the above issues, that you took care of, prior to the test was the problem.

If you didn't find any signs of water, either the Humidity Sensor/Condensor Switch has failed or the compressor needs to be recharged with refrigerant.

Now, here's the rub. The humidifier you have was not made by Maytag. It was manufactured by Fedders for Maytag and your model has been discontinued. There is a slim chance, that some parts may still be available, using the Fedders model Number. It's the same as yours. Just drop the M on the front. The best source for parts, that I have found is Appliance Factory Parts. If it's still available, they'll have it. http://www.appliancefactoryparts.com/dehumidifiers/maytag/m7dh45b2a.html

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

May 30, 2011 | Maytag Dehumidifiers

1 Answer

FAN AND COMPRESSOR START. HUMIDITY SET AT 30, ALWAYS RUNS. NO WATER IS CONDENSED. PAIL STAYS EMPTY. CLEANED FRONT AND BACK OF COILS, REALLY ONLY FINS,CAN'T GET TO COILS WITHOUT HAVING TO DO A...


Rather than have you disassemble the cabinet to get to the coils, I want you to do an "At Home Test".

Move the dehumidifier to a bathroom that has a shower. Plug it in, Turn it ON and set the humidity level at 30%. Turn the shower on to medium hot (enough to generate some steam. Do Not turn On the bathroom exhaust fan. As you leave the bathroom close the door. Wait 15 minutes and return to the bathroom. Turn the shower OFF and inspect the unit's water collection bucket for water. If you find any, the unit is working as it should. If you don't find any water, it may be that the humidity sensor has failed or the air intake filter is clogged. In which case, remove the filter and clean it. If it's the sensor, unless you are really DIY savy, I'd recommend buying a new dehumidifier. As finding the part (your unit was made by Fedders), the cost of the part and the labor involved, to me, out ways repairing it.

Now, on the positive side ... If you saw water in the bucket after the bathroom test. It may simply be, that at this time, there is not enough humidity in the room air (even at 30%) to trigger the sensor. If the unit is in a basement, the air temp (60 degrees or lower) will affect it. As the temperature at floor level (where the unit is) is 5 to 8 degrees colder than the air temperature. Dehumidifiers don't work well in cold temperatures.

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

May 18, 2011 | Maytag M7DH45B2A Dehumidifier

1 Answer

I have purchaced two maytag dehumidifiers M7DH45B2A either one works. I cleaned inside and out blew out the coils with air. Motor runs but will not take out the humidity.


You may have the humidity level set to high. Keep in mind, the higher the number on your LED screen, (if your units have LED display) the more humidity remains in the house. Lowering the numbers on the screen (to 45%), should have a better affect.

Hope this helps you. Please let me know.

May 11, 2011 | Maytag M7DH45B2A Dehumidifier

1 Answer

My dehumidifier is not working properly. I do not know how it works, I do not have the manual. I have a temperaturesetting and a humidity level area. Do I need to set it on the humidity level to pull water...


Yes set unit humidity dial about half way or until it comes on. You need something to measure humidity. most of dials dont have a humidity reading. Set at about 50% Rus

Jun 14, 2009 | Maytag M7DH45B2A Dehumidifier

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