Question about LG Dehumidifiers

2 Answers

I have an lg 45pint dehumidifier and the compressor tries to kick on but will only run for 1-4 seconds. it seems to try to kick on at random times. the fan and other controls seem to be working correctly john

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  • john_walbert Oct 08, 2009

    It is not related to the recovery tank. that works as it should and cuts off the entire fan and wont run if it is removed or if I fill the tank.

  • john_walbert Oct 12, 2009

    The problem is not related to the recovery tank. I have pretty much torn apart the humidifier and I am heading in the direction of either the capacitor or something electronic.

  • john_walbert Oct 13, 2009

    thanks for getting back to me. I will check it out and see if I can find/replace what you are talking about.

  • john_walbert Oct 13, 2009

    There is a black box with a silver capacitor the looks like a small can up at the top where all of the power wires and circuit board are located. Is that the capacitor that you are talking about or is there another capacitor located down by the compressor?

  • john_walbert Oct 14, 2009

    I know the dehumidifier is not working correcting. It is not functioning normally as the compressor is attempting to run but kicks off, even when I have the humidity level set to run regardless of the humidy level. I got this from a friend of friend that I could not get any details from. From the look of the coils and the internals, my guess is that this never ran correctly.



    When I first brought it home and turned it on over nite (july in MarylandD, very humid) in my basement, it ran with no water being pulled out of the air. After working with it from a couple of hours, I realized that the compressor was never coming on. So I took off the front and rear grills and did not notice anything that looked obviously wrong with the wiring. I tried my voltage tester on a number of areas and did not see anything obviously wrong again. So I decided to try the old method of smacking the compressor a few times with my hand. It was at this point that it started to at least attempt to kick on but only for 1-2 seconds at random times. I played around a little more with the connections to the compressor but that did not do anything. I jolted it a couple of more times and it will occasionally run for 1-5 seconds but shuts down. So it could be a seized compressor. I am not sure if it could be the capacitor not providing enough current to start up the compressor. is there any way to tell? if it is a seized compressor, is there anything to do other than scrap the dehumidier and buy something else?

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  • Master
  • 1,714 Answers

On the side of the compressor is a small black box. It has a 'starting capacitor' for the windings in the motor to start. It's probably failed. You can get the info, micro farads ( uf ) and the 'volts' and replace it at www.grainger.com

Posted on Oct 13, 2009

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  • Master
  • 835 Answers

Make sure the recovery tank is empty, also make sure that the little sensor that is under the tank (the one u dump) isn't bent, or have any debree around it thats keeping the sensor under it from being able to set at the right position when the tank is full or empty.

Posted on Oct 08, 2009

  • 2 more comments 
  • Norman
    Norman Oct 09, 2009

    then im puzzled on what it could be. how ever I will do some research on this problem for you, and post you what might be the problem and the solution soon as possible. Sorry for the delay.

  • Norman
    Norman Oct 13, 2009

    sounds like the compressor is seized.


  • Norman
    Norman Oct 14, 2009




    I did even more research on your prduct here is a list of facts i found..


    Q1.

    My dehumidifier stops working and won't operate anymore.
    There
    is probably nothing wrong with your unit.If the relative humidity in
    the room reaches the level you have selected, the dehumidifier will
    turn itself off until the humidity rises again.
    If the bucket is full, it will prompt the shut-off switch, shutting off
    the unit.The green AUTO SHUT-OFF indicator will light up.Empty the
    bucket and the dehumidifier will operate as usual.
    If the temperature in the room is 65F (18C), the dehumidifier will turn
    itself off. Running at a low temperature causes frost to form on the
    coils, which interferes with proper operation.
    Q2.
    Can I use my dehumidifier in my basement?
    Yes,
    a basement is an excellent area in which to use a dehumidifier.
    The only difficulty that may arise is that basements are often cooler
    than the rest of the house, and if the temperature is below 65F (18C),
    the dehumidifier will turn itself off to protect itself from forming
    frost, which could damage the unit.
    Q3.

    My dehumidifier turns itself on and off several times.
    This
    is normal.
    The humidistat turns the unit on when the humidity is higher than the
    set level, and turns the unit off when the humidity has been reduced to
    the set level.
    (This is similar to the operation of a thermostat in an
    air-conditioner.)
    Q4.
    Where should I place my dehumidifier?
    Put
    it in an area where dehumidification is most required.
    For example, you might put it in a room below ground level, such as in
    a basement or garage. You also might put it in an area where there is
    heavy moisture, such as in a laundry room.
    Of course, it won't be particularly effective if doors and windows are
    left open. LG's dehumidifiers are intended for indoor use only.
    The dehumidifier should be installed at least 12 inches from the wall
    on all sides.
    Q5.
    How much water does the dehumidifier remove?
    Moisture
    removal depends on how much moisture is in the air and on the capacity
    of the dehumidifier. For instance, if the relative humidity is low
    (25%), there is less moisture to remove from the air than during a
    rainy day, when the air has higher relative humidity.
    For more information, refer to the owner's manual to determine the
    capacity of your dehumidifier.
    For your information, LG's DH2510 will remove up to 25 pints of water
    per day from the air; the DH6010 will remove up to 60 pints per day.
    Q6.
    What happens if the dehumidifier frosts?
    The defrost sensor will detect frost on the coils.
    It then turns off the compressor while allowing the fan to run.
    This draws air across the coils, melting the frost.
    When the coil has been defrosted, the compressor restarts automatically, and dehumidification resumes.
    Q7.

    My DH turns itself on and off during the day.
    This,
    too, is normal.
    The humidistat turns the unit on when humidity is higher than the set
    level, and it turns the unit off when humidity has reached the set
    point.
    (This is similar to the operation of a thermostat in an
    air-conditioner.)
    Q8.
    Must the DH bucket be emptied everyday ?
    This
    is normal. If you are in an area of high humidity and the unitruns for
    a considerable part of the day, the bucket will fill up often.
    This isn't a problem.
    Q9.
    What can I do with the collected water?
    Pour it down the drain or pour it out somewhere outdoors.
    Some people use it to water their houseplants.
    Q10.
    Where does the collected water go?
    The
    water that forms on the coils is flows to a tray at the bottom.From
    there it runs into a bucket. If you use the dehumidifier in your home
    or office, leave the bucket in place and empty it when it becomes full.
    If you use the dehumidifier in an area that has a floor drain, you can
    attach a hose to the threaded fitting on the water tray and direct the
    water into the drain. For this to work, the drain must be lower than
    the water tray-force of gravity will cause the water to drain
    naturally.
    The bucket must be removed to use this option. Information found onhttp://www.lge.com/products/sidemenu/lis...|FAQ_faqlist.jhtml




  • Norman
    Norman Oct 14, 2009

    no if u cant break it loose by tapping it with a hammer, other then replacing it, its pretty much junk.
    just been trying to trouble shoot every possible issue. thats why i posted the other things.


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