The coils on my Edison 25 keep frosting up. We have the AC on all the time. The coil frosting has just started this summer. I will be waiting for your reply. Thanks you, Keith Setchell

if frost is building up on coil face with it running 24 hrs or more , then id say yes it's low on a gas charge

MIKE - I have the same problem...previously, there was NEVER any frost, and the unit worked just fine. Now, all of a sudden in the last week, frost has been forming...water no longer traverses thru the tube into the sink...and the unit is basically useless/

I think when the original person said "frost", they meant ICE!

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....

Dehumidifier is Freezing up and not working
http://www.fixya.com/support/r4662033-dehumidifier_freezing_up_not_working

heatman101

Frost means one of two things, low refrigerant or low airflow across the coil. The unit probably has lost it's refrigerant charge ( or some of it's charge) even though it hasn't been used.

my coils freeze up on my edison 40 any ideas

Same problem with mine.I've tried to clean mine as well. HELP, I live in a very woodsy area and constantly fight humidy.
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It's possible that the coil has become extremely dirty. It can be cleaned, but to do it well requires removing the external housing to better access the coil. I had a similar problem where the dehumidifier ran and the coil became quite cold but would not condensate. A thorough cleaning has it working as good as ever. Compressed air is not sufficient to remove the dirt accumulation, it must be physically scrubbed or rinsed from the surface. I used a rag pulled back and forth to scrub between the coils in areas where I couldn't reach to dislodge the grime with my fingers.

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.

Most dehumidifiers have a "Frost Guard" mounted on the condensor coil. If frost accumulates on the condensor coil the frost guard turns the compressor off until the frost melts, then comes back on again. For the dehumidifier to work properly, the surrounding (ambient), temperature must be higher than 65 degress. This temperature allows the moisture in the air to condense on the coils and drip into the reservoir without freezing up on the condensor coil. Also, if the humidity is too low, (below 45%), the same condition will occur. So it will help to keep the parameters in mind when you have this issue.

Thank you for your allowing me to advise you on this issue.

Dave E. (Illeagle)

expected? of course! this is not ur solution try draining all the water to the sewerage if u cant try to pump it out with a vacuum cleaner (that can pump water) or a pump then turn on the Dehumidifier every time it frosts turn it off untill it defrosts or u can heat up the basement with a bellower and the Dehumidifier wont frost