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I have temp in basement over 65, and it still gets cold water forms on top, starts to frost...less than a year old, was working fine this winter, set at 50....
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Freon is no longer used, it has been banned by the EPA. Never the less, the first thing you should do is clean the coils. If they are dirty, it will cause the unit to freeze up or frost over. Warm water and a mild dish washing detergent will do the trick. Wipe them off thoroughly and then dry them. Then apply a thin coating of WD40.
Another cause is using the unit in a basement application. The air temperature at floor level is colder than at chest level. Dehumidifiers struggle at temperatures between 40 & 65 degrees F (unless, you have a Low Temp Model designed for basement applications). Raising the unit up off the floor on to a sturdy table, counter top etc that can handle the weight of the unit and a full bucket of water, will generally resolve the problem
And finally, the defrost sensor may be faulty and needs to be replaced.
If none of the above solves the problem for you, have the refrigerant checked,. it may need to recharged.
Hope this helped you and thanks for choosing FixYa.
The problem you described can be caused by 3 things:
1. The air intake filter is dirty or clogged and needs to be removed and cleaned.
2. The cooling coils are dirty and need to be cleaned. Turn the unit OFF & unplug it before attempting to clean the coils with warm water and mild dish washing liquid. Then rinse and wipe dry. A light coating of WD40 will help them stay clean.
3. The dehumidifier is being operated in a basement, where the air temperature at floor level is below 65 degrees. When this happens dehumidifiers struggle at temps below 65 degrees F unless it its a Low Temp model, designed for basement applications. Raising the unit up off the floor onto a sturdy table or counter top, that can hold the weight of the unit, plus a full tank of water, will generally resolve this problem.
I hope this helps you to troubleshoot & solve the problem. Thanks for choosing FixYa.
After the unit is totally thawed and dried, turn the unit Off if you haven't already and unplug it. Remove the filter and clean it. If it's really dirty wash it with warm water and dish washing liquid, thoroughly rinse it and allow it to completely dry, before reinstalling. DO NOT operate the unit without the filter in place.
Because the air temperature in a basement is colder at floor level, than at shoulder level, this caused the coils to freeze. Dehumidifiers do not work well at temperatures at or below 60 degrees F. That is, unless, it's a Low Temperature model, designed especially for basement applications. Obviously, yours isn't a Low Temp model.
To overcome this, place the unit up on a sturdy table, counter top, etc, that can handle the weight of the unit, as well as a full bucket of water. The higher off the floor the better. This way, the ambient operational temperature will be higher and the coils will have less of chance to freeze again.
I would suggest that continue to monitor the unit and if you notice that it's doing more than a little frosting on the coils, turn the unit OFF immediately. A little frosting is normal and the deforst mode should kick in and thaw the coils. When this happens, the compressor should automatically shut OFF, but the fan will continue to run. Once it's defrosted, the compressor will start again, if necessary.
I hope this helped you to troubleshoot and solve the problem. Please let me know.
According to your Owners Manual, the coils may start to frost at 60 degrees and the defrost sensor should turn ON and cycle periodically. However, the air temperature at the floor level in a basement, is colder than the air temperature by 5 to 8 degrees. So this may be causing the problem. In addition, if the air intake filter is dirty or clogged, the unit has to strain to keep up and will not function as it should.
If the unit is totally iced up, turn the unit Off and unplug it from the wall outlet. Allow is to thaw completely before attempting to clean the filter. You may want to put some old towels under it while it thaws. Once it's thawed, move it to a bathroom that has a shower. Plug it it in and set the humidity level at 45%. Turn the shower ON at a Medium hot temperature (enough to generate steam) and as you exit the batroom, close the door. DO NOT operate the bathroom's exhaust fan. Allow the unit to operate for 15 to 20 minutes, before returning to the bathroom. Then turn the shower OFF and check the unit for any frost and the amount of water collected in the bucket. If there is no frost on the unit and there's water in the bucket the unit is operating properly.
When you move it back to the basement, place it up off the floor on something sturdy, that can hold the weight and not be bothered by the vibration of the unit, when it's running. (ie a work bench, a counter top, etc.) Operate the unit as you normally do and monitor it for frost or icing up. And, whether or not the defrost sensor is cycling as it should. If you get no frost or just minor frost, it was the air temperature at the floor level, that was causing the problem.
Hope this helped you to troubleshoot and solve the problem. Please let me know. Thanks.
Dehumdifiers work by cooling a coil below the dew point temperature of the ambient air. When this happens frost or water will form on the coil. Most room dehumidifiers work with the room temperature above 65 deg F. It works well when the temperature of the room is 65 deg F or higher. But when the temp is below 65, it won't work because the coil does not reach the dew point.
There are cold temperature dehumidifiers that are designed to work in colder environments such as basements. They can work in a environment as cold as 40 deg F. Check your owners manual to see what type of humidifier you have to see what is the minimum operating temperature for you unit. Hope this helps you.
your coils are probably frosted up. This can happen from the basement temperature being too cold if you dont have the automatic defrost type of dehumidifier, or it could be low on coolant from a pinhole that leaked it out. Mine did the same thing and I had to buy another one. I bought one thats operates down to 41 degrees Fahrenheit and it is an automatic defrost type. It works good for my basement because I have central air which makes the basement even cooler and harder to dehumidify without freezing the dehumidifier up.
Most dehumidiers have a "Frost Guard" thermal protector on the condensor coil. This protector will turn the compressor off should the temperature fall below 65 degrees in the basement. The condensor fan will still continue to run anticipating the restart of the compressor.
Hence, 3 things could be wrong.
1. air temp.of basement is too cold
2. Frost guard could be faulty
3. Freon leak in condensor coil.
Assuring that basement temp. is above 65 degrees is about all you can do unless you have it checked out by a technician.
I have the same dehumidifier and it does the same thing. but I was able to fix mine. It was not low on refridgerant. There is a temp. sensor clamped to the evaporater coil with a thin metal clip. The clip rusted out and the sensor fell out of position. I used a small stainless steel hose clamp and clamped the sensor back into position. It now works fine
I did a little digging around on the internet and found out that if the basement (or where ever you have your unit) is in an area where the room temp might dip below 65 degrees the coils may start to become "too efficient" in pulling the moisture/humidity out of the air and it begins to freeze on the coils before it can drip off into the reservoir. The site said to turn off the unit and let it thaw out, then restart it and see if everything works ok after that. If the temperature gets too low you might need to warm up the air in the room/basement before it will operate correctly again/not continue to freeze up. Hope this helps. Mine just did the same thing but we've had some pretty cold weather recently and the basement is fairly cold as well.
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