Coil Freezes up. Filter Clean. Temp is low 60s.

It could be that the evaporator is is not getting enough air flow or the unit has a freon issue. Low on charge or a restriction.. Air flow, dirty filter, dirty evaporator coil.

Are you sure that it takes 134a? That is the refrigerant that is in cans. Without knowing what the pressures are on the high and low side and the ambient air temp, it is hard to say what the issue is. I would check the compressor cut off and that is controlled by the thermostat. If it is not shuttting off the compressor, then the temp of the evaporator coil gets too cold.

I don't think there is anything wrong with your machine ... What I think you should do is get another fan and blow air onto the rear of your dehumidifier. I also think you should select a higher setting until you get some of the water out of the air. When you get down to 80% for example (evidenced by the machins turning off - set it then to 70% and so on until you arrive at the moisture content you desire (50% is usually considered perfect.) You might also consider adding another machine to help the first, same setup with a fan blowing on it.

This is what I did when my dehumidifier did the same thing yours is doing.

Thanks for your quesiton @ FixYa.com

Check the air filter. Freeze ups are often caused by low airflow across the cold coil. A dirty air filter can severely restrict air flow. Replace or wash (if a washable type) the filter and allow the dehumidifier coils to defrost completely. Reinstall the filter and be sure to locate the appliance so that air flow in and out of it is not restricted in any way (not up against a wall, behind a door, curtains, etc.) and restart.

If the unit has been run without an air filter, the cooling coil fins are probably choked with dust and dirt. They should be cleaned with a product designed expressly for this purpose such as:



Evaporator coil cleaner is available from many hardware and "big box home supply stores" such as Lowe's or Home Depot.

Use only as directed, and buy filters! it's much easier to replace filters than cleaning coils.

I hope this helps and good luck! Please rate my reply "4 thumbs up" if it was helpful. Thanks!

Hi,


In your case you have a refrigerant leak and the unit is low on charge...unfortunately till you find the leak and fix it, then recharge the unit, you will have more money into the old one then to buy a new one...

Here is a tip that I wrote that will help you understand why and what you can do with a dehumidifier that ices up.

Dehumidifier is Freezing up and not working

heatman101

clean filter and then check the coil behind the filter to see if clean. Biggest things that freeze a unit are dirty filter or coil...or low on freon.

Be sure the unit is clean inside. It sounds like there is not enough air going over the coil. If you are comfortable with it, you may want to remove the covers and thoroughly clean the coils (may have fins clean them as well). It doesn't take a lot of air restriction to cause this problem.

Although unlikely it may have lost a little bit of its charge.
Good Luck,
Gilshultz

first clean filter also check fan is operating if the evaporator is clean then check freon pressure may is low so youhave to repair the leak and recharge with freon.

dirty filter,dirty coil or low on charge

low air flow coil could be dirty or if not then low on freon it gets colder when leaking out