Question about LG LHD45EL Dehumidifier

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Bucket full light is on so won't pump, but bucket is emtpy. showing message Ch 01

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Hi,
There are many questions about dehumidifiers that do not start. Many times the reason they do not start can be found in a little switch know as the bucket full switch, water level switch, float switch and I’m sure many others names.

The switches in what ever form they take area a safety type switch. Their function is to turn off the dehumidification unit if the bucket gets full and is about to run over. It also prevents the dehumidifier from running without the bucket seated properly in place.

The problem is that these switches takes a lot of abuse when the bucket is removed and dumped many, many, times. The removal and reinsertion of the bucket can break or bend the switches. Float switches also are fragile and to not take being banged around also.

If you have a dehumidifier that will not run, then check out the switch(es) at the bucket. If it is just a simple bucket full switch, you may be able to just hold it up by hand to see if the machine will start to work. If it still does not work, then the switch may need to be replaced. Float switches also can be manually tripped in some cases.

The most frustrating part is that many times on newer dehumidifiers the compressor is on a time delay. This means that the compressor may not start up immediately when the switch is pressed, or makes contact. Wait a few minutes for the machine to start before saying that something is no good.

For some switches if they get bent, you can just re adjust the switch by rebending the tab to the position that will cause it to be on. Float switches can get dirty and will need to be washed thoroughly to get them to move freely so that the presence of water will cause them to switch the dehumidifier off.

Finally, some dehumidification machines have a sensor in or near the bucket that senses if the water level gets too high and will shut down the whole machine. Most of the time if this sensor goes bad, the whole board and the sensor will need to be replaced.

There are many different types of dehumidification units and it is impossible to cover all the possibilities in just one article. This should however, cover most of the situations that you will encounter. Use some patience and detective work to figure out what is causing your dehumidifier not to work or start.

Take care

Posted on Jul 14, 2010

  • jkhartman1 Jul 14, 2010

    It problem should not be the bucket full indicator switch becasue the unit was using a pump rather than manual emptying of bucket. I think the pump broke down, but the dehumidiyer isn't working either. This LG unit is showing CH 01 in message box

  • Shehu Pro
    Shehu Pro Jul 14, 2010

    Message Ch 01means you should change the sensor assembly, Part # 6877A30013M from Appliance Factory
    Parts in Englewood CO, about $30. Easy to change, plugs into control
    board, remove old temperature probe by pry T-well open with small
    screwdriver and then crimping back closed when new sensor is installed,
    about an hour start to finish, hardest part is getting all the covers
    off.

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Here is a tip that explains what can be happening to make the dehumidifier showthat the bucket is full when it is not.

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Hi,

Here is a tip that explains what can be happening to make the dehumidifier show that the bucket is full when it is not.

Dehumidifier Problem It shows Bucket Full

heatman101

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