Question about Comfort-Aire HD-651 Dehumidifier

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Control panel will not work on/off switch dosn't work.have 2 dashed lines on present humidity and desired level

I think the computer board under the operating panel or theone in the power source box must be bad. Thanks, Lew Williams

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4 Suggested Answers

  • 121 Answers

SOURCE: Dehumidifier Present % indicates "Hi"

It is showing high because the present humidity is above 80%. Try turning the humidity setting down and let the dehumidifier run for a while. Once the dehumidifier lowers the humidity in the room this level will go lower. If this persists after running for a while you will need to contact LG for service. They back these models with a 5 year warranty. Here is the number to contact them at:

1 (800) 793-8896

Keep me posted. Thaks - Tech101

Posted on Jul 08, 2008

heatman101
  • 43501 Answers

SOURCE: this dehumidifier does not seem to removing any

Hi,
Here is a tip that I wrote about that problem...

http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in

heatman101

Posted on Apr 30, 2010

  • 10865 Answers

SOURCE: Bought the 45 pint model yesterday. Seems to be

Hello. You will have to return this unit as it is faulty. J.

Posted on Jul 28, 2010

  • 4736 Answers

SOURCE: Fan runs but compressor does

Three things can cause the problem you're having:

1. A dirty or clogged air intake filter.

2. The humidity extraction level (percentage) is set to high. Lower it to 35%. Or minimal if you don't have an LED display.

3. Not enough clear air space around the unit. Maintain a minimum of 12" clear space around the entire unit.

Number 1, should become a part of a every two week routine maintenance program.

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

Posted on Jun 02, 2011

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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

I cant change humidity levels


Hi Ra Ma,
After you have set the desired humidity, the readout will display the actual room humidity. It has a built in hygrometer which will be on the display while it is running.
You change it and it shows the actual levels.

See page 5 on manual.

http://manuals.frigidaire.com/prodinfo_pdf/Edison/2020266a0180en.pdf

Mar 02, 2014 | Frigidaire 70-Pint 2-Speed Dehumidifier...

1 Answer

I cannot change the set point on my humidity control. It is at 70%. If I press the up arrow i get 2 beeps and no change. When I press the down arrow there is no response at all. Is there some sort of...


The problem is, your trying to raise the humidity level, not lowering. These work in reverse of what you may think. Lower the level (Arrow Down) to 32% and it will continue to run, but will draw more humidity out of the air and will not stop until the water collection bucket is full or the humidity level reaches 32% or you turn it OFF.

When you pushed the Arrow Up Button, it was already on 70%, that's as high as it will go. But that means, you're trying to maintain a 70% humidity level. If it's Summer where you are, I don't think that's what you want.

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

Jun 24, 2011 | Kenmore 54501 Dehumidifier

1 Answer

My LG Humidifier turns on and seems to run fine for a few minutes then the present humidity % starts going up and up all the way to high then the whole thing shuts down. Of course it does not run long...


Chef, you need to turn the Master ON/OFF Switch to OFF and unplug the unit from the wall outlet for 15 minutes. While you're waiting, remove the air intake filter and clean it, if necessary. After the 15 minutes has elapsed, plug the unit in, turn the Master ON/OFF Switch to ON and set the control to Manual Operation. Lower the humidity extraction level to 32% or 35% and allow the unit to run in that mode, rather than automatic. This will give you a good indication if moisture is being extracted or not.

If it is working as it should, you can leave it in manual timed mode (normally 2 or 4 hour segments). This way, cycle On and OFF as necessary, based on any rise in humidity above 35%.

I hope this helped you solve the problem. Please let me know. Thank you.

Jun 08, 2011 | LG LHD45EL Dehumidifier

1 Answer

When the desired humidity level is reached (in my case 50 %), the unit does not go into standby - why is this? It reads 48% but is still running.


I would check the humidity sensor. I think it is located in the return side of that model. It may have trash on it.

Jun 04, 2011 | Danby DDR6009REE Dehumidifier

1 Answer

My dehumidifier is not working. The control panel lights-up, but its stuck on 70% humidity and won't adjust down. I took it apart and noticed burnt marks next to the circuit that controls the humidity....


I'd say you're right on target. In which case, although the unit was manufactured my Whirlpool for Sears under their house brand, Kenmore. You can find the part(s) online at Sears Parts Central
http://www.searspartsdirect.com/partsdirect/index.action . If you can do the replacement yourself, you'll really save $$ on labor.

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

May 30, 2011 | Kenmore 54701 Dehumidifier

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

2 Answers

Humidity buttons don't seem to work.


the control board is a very simple design and it is to signal and switch options like fan speed, power on/off, humidity up/down and sets the on/off run time. Like above the board does collect dust,but the true problem runs deeper.

My unit was stuck in run mode with the fan speed, humidity and run timmer non functioning. the unit worked and the power switch turned it on and off. The display said ON

I removed the front cover (two screws) and slight pressure on the side of the cover to remove it. This exposes the control board. The control board can be removed by removing the 6 screws on the board. the cable can then be removed by pulling out the multi-pin ribbon cable.

I diagnosed that only two of the 5 push button switched were functioning. There was also dust and mold on the board. This board is poorly protected from the moist air entering the unit and the constand moisture causes corrosion on the board, the switched seem to be the weak link.

By using a multi meter I noted that only the power switch and the humidity down button were making contact when pressed. Now it all came together. I could turn it on and off. and if you press the humidity down button to the lowers setting (ON) means run all the time.

I used a elecronic contact cleaner and sprayed it into each of the switches. I wiggled it around and blew it out with canned air. It took a few wiggles and blasts but all switched then made contact. I the board back on and tested all functions and it was like new. The contact cleaner should keep it protected for a while. The non functioning of the switches works both ways. They can stick on also. This would explain most of the other control problems. These switched are common and can be picked up at Radio Shack. On a do-it-yourself bananna scale it was a 2 for me, but I had the tools and the spray. I am not sure what sears gets for the PC control board,but this is the issue and if they were to address this the unit complaints would drop greatly.

Feb 03, 2008 | Kenmore 54701 Dehumidifier

1 Answer

Dehumidifier Present % indicates "Hi"


It is showing high because the present humidity is above 80%. Try turning the humidity setting down and let the dehumidifier run for a while. Once the dehumidifier lowers the humidity in the room this level will go lower. If this persists after running for a while you will need to contact LG for service. They back these models with a 5 year warranty. Here is the number to contact them at:

1 (800) 793-8896

Keep me posted. Thaks - Tech101

Jul 25, 2007 | LG LD65EL Dehumidifier

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