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The normal operating temperature is above 65 F. Much below unless specially designed for low temperature they will freeze up.
They have a frost detector and will defrost but it is very inefficient and not practical. My experience they eventually form a block of ice on the coils. They heat the room in the process so in a moderate area they can raise the temperature and provide needed circulation.
In the past where the temperature is cool I have faced the output into a corner, raised it off the floor and once the unit got started the heat created from the unit kept the air warm enough to avoid freezing up the coils.
Always check for recalls. Some models have had problems and have been recalled. See the link below.
Makes no sense to me as this refrigerator only has one compressor/evaporator. The freezer should also cool the refrigerator section. Try defrosting the freezer - perhaps ice has somehow blocked any airflow to the refrigerator section.
if this model doesnt have the removable filter on the middle right side then the filter is not removable by std means and unit will need to be dissasembled for this , Now there are a few reasons for unit to freeze , and yes your right one of them is a dirty air filter . and if its gone too far then a dirty condenser coil as well , also if unit is over three years old then it's possible that due to overheating some of the gas chanrge has gotten out , reducing it's efficency making it run longer with no cool down and freezes up , also if your asking it to remove more water than its designed for (setting to high) it will freeze up as well , std moisture for a home is 70 %rh purchase a small meter to measure this ,(some units have one built in) see how much water you really have ?
If your dehumidifier is freezing up then that probably means it is actually working well. The humidity level in the room is probably just relatively low and you probably have the unit turned up too high for the conditions.
Try turning down the setting on the unit so that it cycles on and off every few hours and does not run continuously.
Also try using some warm soapy water to clean off any dust or oily residue from the cooling coils in the rear of the unit.
The ambient temperature in the room may also be a bit too low, so you can try adding some heat to the room. Since warm air rises, you can even try lifting the unit higher up off the cold floor onto a bench or table where it is warmer.
I don't believe you need a new dehumidifier. Just try a few of the simple tips above and see if it works any better and stops freezing up.
Make sure the filter is clean and plenty of air comes through, when coils freeze it is usually caused by low air flow coupled with lots of humidity and low air temperature in the space to be cooled. Clean the filter, fan and gently brush all dust and debris from the intake of the cold coil and retry it. If the basement is already cool and you are trying to dehimidify you should use a dehumidifier that features defrost controls.
Sounds like the unit may be dirty or the fan is not moving enough air. Most Dehumidifiers do not have a defrost cycle. Air is drawn over the evaporator where moisture condenses and drops out, the air then passes over the condenser where it is reheated. The cool air helps cool the high side lowering system pressures and improving efficiencies. If the filters etc are clean and all the ducts and shrouds are in place and it still freezes you probably have a bad fan motor or possible a small refrigerant leak. Good Luck, Gilshultz
A dehumidifier works by cooling the metal pipes on the back of the unit to create condensation (water vapor in the air). This then drips into the collector bucket. If the unit runs too long the cooling tubes can get too cold and freeze the condesing water vapor. Unplug the dehumidifier and let the ice melt, when u turn it back on, turn it down, it may be up too high. If you find this solution helpful please rate it.