Frigidaire Frost Free Commercial Freezer

is the top of the freezer full where it can breathe remove something to help it breathe

Check behind and underneath for dust buildup, sounds like your compressor needs cleaned on the outside, the dust is causing it to overheat and retain condensation, hence the ice buildup. Easy thing to check, good luck.

i would make sure that the coils are all clean, inside and out. make sure the fan runs on the back, the water pan isn't over flowing.

If we have ice on the inside of the freezer it means air is being pulled into the box somewhere. The most likely place is the door seal, it sounds like you already checked it, but I would suggest that you look very close at the bottom and aides of the seal too, it could be leaking in air from there. Check the inside liner for cracks and seal them if you find any. Look at the corners of the cabinet to make sure there is not room for air to come in.

Air leaks will lead to frost, it is just hard sometimes to find where it is leaking in.

Without any additional info, there are a lot of possibilities:
1. Condenser coil (underneath unit) is dirty and clogged.
2. Compressor is failing. (need A/C tech)
3. Metering device is clogged. (need A/C tech)
4. Refrigerant charge is low. (need A/C tech)
5. Door seal is broken (frost will form around door).
6. Defrost heaters are stuck on (replace defrost timer located underneath unit at front).
7. Condenser fan has failed (underneath freezer on back).
8. Evaporator fan (inside fan) has failed (ice will form on cooling coil).

This should get you started...

If this helps you, please select YES to the first two ratings questions. Thank you, and Good Luck.

pour some hot water in the drain if this does not work use compressed air

Frost free fidges are supposed to stay frost free because the automatically defrost regularly. When they do this they may drain water down to the bottom of your fridge. Look for a tray that catches this water underneath the unit. Make sure yo keep it emptied. If you live in a very warm climate you may be getting a lot of humidity inside. There may be a switch that you can change for lower moisture.

I'm not sure if this will help but the freezer that is located on the bottom of my refrigerator started forming ice on the back part where the cold air was supposed to be coming out. I kept hearing a hissing sound like water dripping on a hot surface. I called the repair man in and he had to replace the defrost timer. Once he did that it worked like a charm.

I am not an expert by any means although removing ice from a frost-free freezer is a pain and this took care of the problem for me. Good luck!

Defected DEFROST HEATER can cause frost build up on the panel at the back of the freezer,and freezer stop cooling and ice frozen on unit so air could not flow to refrigerator side.Water will coming out caused of unbalanced freezing,and causing the flooding of water in the floor. You must change this defroster heater assembly so it will works normal again..


Hope this may help;

Regards,
VOTIT

The drain has most likely frozen over. It is at the bottom behind the back panel inside the freezer. You will need to remove all of the ice and run hot water down the drain until it is clear.