Question about Dehumidifiers

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Unit runs but doesn't pull humidity out of room, filter clean

Runs but doesnt extract water

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Possibly lost refrigerant from system- check warm air is coming out of machine. Otherwise it could be dirty filters, and not getting enough air over evaporating coil. Other than this, replacing parts is usually more expensive than buying a new dehumidifier :(

Posted on Jul 24, 2009

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If your dehumidifier doesn't seem to run often but the humidity in the room is high, try adjusting the humidistat control on the dehumidifier to a dryer setting. If the dehumidifier seems to run constantly, but there's little or no water in the container, there may be a problem in the refrigeration system. Try cleaning the unit. If that doesn't work, you can't repair the refrigeration system yourself, you need a qualified appliance repair technician to do that.

Posted on Jul 18, 2009

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1 Answer

I have an LG model LHD65EBL dehumidifier. The humidistat will not change from 70 when I push either + or -. The fan runs well and the compressor sounds like it is running well Some water comes out when the...


Prt of the problem may be a dirty or clogged air intake filter.

Turn the unit OFF and unplug, it before removing the filter to check and clean it.
You can ether vacuum it or if it's really dirty & clogged, wash it in warm water and mild dish washing liquid. Rinse thoroughly, shake off access water and allow it to dry completely, before reinstalling it.
Never operate the unit without the filter in place. As this could damage the unit.

Plug the unit back in and turn it ON. Try lowering the humidity extraction level now, using the arrow down button. For a very damp, humid basement application 35% is a good setting to start with for several days.

Hope this helped you and thanks for choosing FixYa.

Sep 08, 2011 | LG LHD65EBL Dehumidifier

1 Answer

New Whirlpool gold dehumidifier last summer. Used since then. It still runs (fan) but no water is being taken from the air. I clean the filters, looked at coils, they are like brand new. I hate to give up,...


Kim, it may simply be a case of the humidity extraction level being set to HIGH. Lower it to 35%. If it's an analog unit (No LED Display) turn the humidity extraction knob to Maximum. More often than not, this will solve the problem. If it doesn't the humidity sensor may need to be replaced.

I hope this helped you and thanks for choosing FixYa.

Aug 17, 2011 | Whirlpool Gold AD70USS 70 Pint Per Day...

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

Runs constantly and doesn't remove much water.


John, there are 5 basic, yet solvable sfor 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%. Isf you have an analog unit
turn the humidity extraction level 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 your to troubleshoot and solve the problem. Thanks for choosing FixYa.

Aug 15, 2011 | Whirlpool AD25BBK Dehumidifier

1 Answer

I have a DDR7009EE and the fan runs continuously even when the humidity in the room is below the setting on the machine. Shouldn't the fan stop when the desired humidity is reached?


Lyle, your particular model is designed for the fan to function constantly. However, the fan running doesn't mean the compressor is always running. The reason the unit was designed this way, is for the air to be continually moving, and when the humidity sensor picks up a rise in the humidity level (above where you have it set) the compressor will turn ON and extract that humidity.

Your unit is working as it should. Thanks for choosing FixYa.

Jul 28, 2011 | Danby DDR5009EE Dehumidifier

1 Answer

The unit runs continuously but doesn't collect any water.


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 unit (No LED Screen) turn 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 helps you to troubleshoot and solve the problem.

Jul 06, 2011 | Fedders A7DH65B2A Dehumidifier

1 Answer

We need to have the condenser repaired or replaced. No water collects when machine is turned on. Where can I find a qualified repair man in Cumming,GA?


Before you have it repaired, there are several things you can troubleshoot and solve yourself, that won't require any repairs.

1. The humidity extraction level may be set to High. Lower it to 32 - 35%.

2. The air intake filter is dirty or clogged. Turn unit OFF, unplug it before removing and cleaning the
filter. If you wash the filer, it must be thoroughly dry, before reinstalling it.

3. Obstructed air flow. To function properly, there must be a minimum of 12" clear air space around
the entire unit.
.
4. The cooling coils are dirty and need to be cleaned. Remove the front cover and filter to access
and clean the coils with warm water and dish washing liquid. Rinse , thoroughly dry and coat
coils with a light caating of WD40.

5. The air temperature at floor level is between 40 - 60 degrees F. Most dehumidifiers don't function
function well in that temperature range. Especially in a basement application. The ambient air
temperature at floor level is colder than at chest level. Set the the unit on a sturdy table, counter
top, etc, that can handle the weight of the unit & a full tank of water.

Conduct an in-home test, to check humidity extraction: Place the unit in your bathroom, plug it in and set the humidity extraction level at 32 - 35%. Turn the shower ON hot enough to generate steam. Close any window(s) in the bathroom and Do Not turn the exhaust fan ON. Close the door as you exit the room and wait 15 - 20 minutes before returning. After the time has elapsed, open the bathroom door, turn the shower OFF and allow the unit to run 5 more minutes. Then check the water collection bucket for any signs of water. If you see any, the unit is working as it should and one of more of the above solutions took care of the problem.

If the unit showed no signs of humidity collection (water) in the bucket and you want to have it repaired. The closest Delongi Authorized Service Center(s) to you are in Florida (please see the following link) http://www.delonghiusa.com/index.php?service

I hope this helped you further troubleshoot and solve the problem without having to make a repair. Please let me know. Thanks.

Jun 16, 2011 | DeLonghi DE500P Dehumidifier

1 Answer

Whirlpool dehumidifier ad35dssi runs, but doesn't collect any water, even in a wet area. Have cleaned filters, no luck.


Glad to hear that you thought to clean the filter, as that would have been one of my suggestions. Because, it's the most overlooked.

But, there is another one that equally overlooked and is probably the number cause of your humidifiers problem. The humidity extraction level is set to HIGH. Lower it to 32 - 35%. If your unit does not have an LED Screen readout, set the control on MINIMAL.

This is what gets confusing about the use of dehumidifiers. They work backwards from what most people think. The lower the setting, the more moisture/humidity is extracted from the house. The higher the setting/numbers, the more humidity remains in the house. The higher setting would be used only in the Winter, because removing all the moisture and humidity will make the house uncomfortable.

If this wet area, you mentioned is a basement. The ambient air temperature at floor level is colder than at chest level and dehumidifiers don't work well in temperatures between 40 & 60 degrees F.
If this is the case, placing the unit up off the floor on a sturdy table, counter, etc that can hold the weight of the unit, plus a full bucket of water will generally solve the problem.

Also, be sure that you're maintaining at least 12" of clear air space on all sides of the unit. If the air flow is obstructed, the unit will run all day and not extract any water.

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

Jun 13, 2011 | Whirlpool AD35USS Dehumidifier

1 Answer

Plug it in turn it on and nothing in the bucket after several hours


Hi, Mindy! The following is an overall review of what causes the problem you listed.

If the room air is less than the set air, then there is no water in the bucket, because there is almost no humidity in the air. If it is winter, there is likely not enough humidity in the air to have water collect in the bucket. A dehumidifier will only pick up humidity out of warm air. If you are running a dehumidifier in your basement in the winter, the room may be damp, but too cold for the dehumidifier to pull out the humidity. Try running the unit in the bathroom after having a hot shower without the bathroom fan on. If working correctly the unit should draw water. In addition, if you set the humidity level you want to maintain higher the actual humidity level in the house or room, it won't pickup and collect any moisture. The fans on most of the dehumidifiers on the market today run almost constantly. They do this, so that the room air is always moving and if humidity is detected, it will extract it.

Hope this helps you understand how dehumidifiers function and what you can expect from them under given circumstances,. In fact, there may not be anything mechanically wrong with yours. But, to make sure, do what is suggested above to test the unit.

Apr 29, 2011 | Haier Dehumidifiers

1 Answer

Dehumidifers runs but doesn't pull the water out air. I purchased this at Wal mart on 2/23/07.


There a couple of things you can do to hopefully solve this problem. Most of the time, the air intake filter is clogged and needs to be cleaned. In addition, the humidity level you have it set to, must be in direct correlation to the humidity in your home. Keep that in mind when setting the extraction setting.

Before you attempt to remove the filter, be sure you turn the Master ON/OFF Switch to OFF and then unplug the unit from the wall outlet.

If by the slim chance cleaning the filter doesn't solve the problem, the unit's compressor may need to be recharged with cooling refrigerant. This is something that is best left to a pro or a service center in your area.

Hope this helps you to continue to troubleshoot and solve the problem.

Apr 12, 2011 | Fedders A7DH45B2A Dehumidifier

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