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Its likely one of two things. 1) the fan isn't moving enough air through the unit. If there is a filter, clean it. 2)If aire flow is OK and its freezing up on one end of the coil and the other end of the coil is not very cold at all then refrigerant charge is probably low. I know that seems counter intuitive but a low charge in a refrigerator or A/C unit (which this dehumidifier is a derivative of) can actually frost up when slightly under charged. Now if the charge is determined to be low there is a leak somewhere and that leak will need to be found and repaired. It will probably take an electronic leak detector to find it. If the leak is on a section of aluminum tubing in a tight location it may be impossible to repair the leak and that may force you into a new unit. If its on a copper tube it can be fixed. If its on aluminum tubing it can be clamped shut if there is physical access for attaching a clamp and seal. Sometimes a leak pushes out some refrigerant oil at the site of the leak making it a visible spot to the naked eye. Hope these comments are of some help
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Coils can freeze if the room is extremely hot. Usually, though they freeze because the path for air flow is reduced. Check input and output grilles and coils for dirt and dust and clean as necessary.
Hi, Dehumidifiers freezing up can be causes by a few different problems. Here is a tip that I wrote to help people with the freezing dehumidifier problem....
Hi, Dehumidifiers freezing up can be causes by a few different problems. Here is a tip that I wrote to help people with the freezing dehumidifier problem....
Hi, Dehumidifiers freezing up can be causes by a few different problems. Here is a tip that I wrote to help people with the freezing dehumidifier problem....
there is a freeze stat on the unit it connects to the evaporater coils it is suppose to shut of the compressor unit when it senses the temp is at freezing the idea is that the unit condenses moisture out of the air like your air conditioner for your house or car this part is dirty or malfunctionong
Hi, Dehumidifiers freezing up can be causes by a few different problems. Here is a tip that I wrote to help people with the freezing dehumidifier problem....
I believe a dehumidifier is supposed to operate in temps above 60 degrees. Even though your house is warmer than that, the air entering the dehimidifier may be getting into that range due to it being on a basement level etc. This is perfectly normal and is not a malfunction with your humidifier.
Your options are to either place the dehumidifier closer to a heat source in order to keep the air which is entering warmer. (I've even heard of someone placing a light bulb in front the unit during winter to warm the air slightly as it enters). Because the dehumidifier's coils get cold in order for it to collect moisture from the air, if they are freezing, giving the unit a rest for a few hours every few hours may allow the coils to thaw in between and prevent them from reaching freezing temperatures while running. You could use a timer to accomplish this, but you'll want to insure that it's a commercial grade timer in order to handle the electrical draw that the dehumidifier requires.
freezing up can be causes by a few different problems. 
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