Question about Frigidaire Dehumidifiers

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My humidity sensor always reads 30

The dehumidifer shuts the compressor off if it is nont operated on Cu.

Posted by Anonymous on

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5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 20% humidity reading

Hi, I just cleaned my dehumidifier and had the same problem as you. I used a spray water bottle and was not aware that the humidity sensor was being soaked. Very stupid of me!! Luckily I have two same dehumidifiers and used the other sensor to replace the one that I so stupidly ruined, and behold my machine worked again. Now I have to buy another sensor. To make sure we are talking about the same thing, my sensor is white,about 1 inch by 1/2 of an inch. It as 4 wires connected to it. To access it you remove the water tank, you will see 2 screws. Remove those, and pry the front panel loose. Be careful the top of the panel is held by two plastic hooks, they break easy. The sensor is located on the right side just above the radiator, under a produting oval lip which as foam around its rim. The wire colors are red black blue and yellow. Good luck Herman

Posted on Sep 20, 2007

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bozcro
  • 867 Answers

SOURCE: kenmore 580.51650000 dehumidifier: compressor

fan should turn off when compressor not running, the relay switch is stuck open for the fan, and probably needs replacing, but even if it always runs there is no harm and it only uses like 15 watts

Posted on Aug 21, 2009

  • 16 Answers

SOURCE: 2 dehumidifiers in the same room set to 35%

It could be bad or is could bee full of dirt and dust. Try cleaning it with a vacuum or a soft brush

Posted on Oct 13, 2010

  • 4736 Answers

SOURCE: I have a 50 series

If the humidity level is at or lower than 30%, the unit won't turn ON, until the reaches 35 - 40%. It's rare for the sensors to go bad. Just keep in mind, the dehumidifier is reading the humidity near the floor, not up at say, chest level. Humidity levels change every season, so this really would not be that unusual. Make sure that your clean the air intake filter regularly. Cleaning and wiping down the coolant coils would be a good idea, too..

Hope this helped you. Please let me know.

Posted on May 17, 2011

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1 Answer

I have a danby dehumidifer model number DDR6011R It keeps saying the humidity is only 30..(Which I know it's higher) so the compressor isn't kicking on. Help??


It sounds like the humidistat sensor failed on the unit. You'll need to replace that sensor to be able to get the unit operational again

Sep 10, 2016 | Danby Dehumidifiers

1 Answer

Fan always runs, speed doesnt change (low/high), setting humidity level doesnt impact...is this a control board or circuit board issue?


Verify the humidity reading with another device. Perhaps the humidity sensor is dirty or bad.

Another possibility is the switching device that runs the compressor and fan is shorted. If it's a mechanical relay, the contacts may have welded together, or if it's a solid-state relay, it's got a punch-through or meltdown in a device junction. My guess is it's a mechanical relay since you mention it used to click on and off and now you don't hear that. The relay may be on the control board, or it may be mounted separately - I don't have a photo or diagram of the inside of your model available.

Jun 25, 2015 | Dehumidifiers

1 Answer

Humidity sensor


It may be right. Are you sure you need dehumidification?

Put a free-standing humidity meter near the unit to check.

If you still want to run the dehum, take the humidity sensor out of the line and control the unit with a timer.

Aug 17, 2017 | Maytag M7DH45B2A Dehumidifier

1 Answer

Articaire dehumidifer


The water level sensor could be defective, giving a false full reading.

Oct 31, 2013 | Dehumidifiers

1 Answer

My dehumidifer is not drawing any water, but the fan continues to run.


There are several reasons this may be happening. The 2 primary reasons are the humidity extraction level is set to high. Lower it to 35% . The lower the setting, the more moisture/humidity is extracted from the air. The higher the setting, the less if any moisture. humidity will be extracted from the air.
On most humidifiers the fan runs almost constantly while in operation. The idea is to continually move the air around and when the unit senses a rise in humidity, above what you have it set on, the compressor will turn ON to extract that humidity.

The 2nd thing that causes the problem is a dirty of clogged intake air filter. Which is easily solved by removing and cleaning the filter. Which should be done at least every 2 weeks, while the dehumidifier is in operation.

I said there were 2 reasons. Actually, there is a 3rd. Not enough clear air space all around the dehumidifier. A minimum of 12" should be maintained during operation.

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

Jun 02, 2011 | Haier 45-Pint Dehumidifier

1 Answer

I have a 50 series w/ digital humidity level readout. Recently unit reads the room at 30% humidity so it shuts off unless preferred setting is set to continuous. Can the sensors go bad that measure the...


If the humidity level is at or lower than 30%, the unit won't turn ON, until the reaches 35 - 40%. It's rare for the sensors to go bad. Just keep in mind, the dehumidifier is reading the humidity near the floor, not up at say, chest level. Humidity levels change every season, so this really would not be that unusual. Make sure that your clean the air intake filter regularly. Cleaning and wiping down the coolant coils would be a good idea, too..

Hope this helped you. Please let me know.

May 16, 2011 | Frigidaire FDF50S Dehumidifier

1 Answer

Humidity sensor reads to low and does not kick the machine on. The readout seems to always be at 20% and wont kick on till 35% Is there an adjustment i can make to tuen the unit on?


It probably doesn't need adjusting, It's simply a case that 20%, there's not enough humidity for the sensor to read. But, at 35% there is. I'd say, your dehumidifier is working as it should.
FYI - there is no adjustments to change the factory settings.

Hope this helped you, chu.

May 16, 2011 | Fedders 30-Pint Dehumidifier Dehumidifier

1 Answer

Kenmore 580.51650000 dehumidifier: compressor cycles on and off as it should based on humidity setting but the fan is always running, even with the compressor off. Checked humid sensor. Any other...


fan should turn off when compressor not running, the relay switch is stuck open for the fan, and probably needs replacing, but even if it always runs there is no harm and it only uses like 15 watts

Aug 21, 2009 | Dehumidifiers

1 Answer

I have a Goldstar GHD30 dehumidifer that I bought used last week. It's pulling 20-30 pints of water each day out of my basement so it appears to be working. The compressor only runs for 1-2 minutes at a...


yes cycles should be longer either that or the unit is keeping close to desired humidity. Also the unit is under sized 30 pint is for 400sqft. or 20 by 20 room. humidity should be 30/50 percent check your level desired room temp is 70 degrees but its a basemnt 60 works.

Jul 28, 2009 | Goldstar DH504EL Dehumidifier

1 Answer

Dehumidifier won't shut off


Well your dehumidifer runs constantly. My guess seeing how you bought a 30 pint per 24 hrs. Your house better be 400sqft. It is under sized and humidity need to be 30/50 percent to stop mold growth. It cant keep up its two small 50 pint are for 1000sqft 65 pint is 1300sqft. Upgrade now!!!!!

Dec 29, 2008 | LG DH30 GoldStar Dehumidifier

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