Turbo air freezer

There are a few possibilities. Freeze-ups are a result of the unit either not having sufficient airflow or the compressor running too long and too often. As you note the fan is good, chances are airflow is not the issue. There are a few quick items that you can check on:

1. Check door seals. Leaks will cause the interior to lose cooling faster and result in compressor overloading.
2. Do not overload the freezer. Too much inside the freezer will cause loss of airflow INSIDE the unit and can cause issues.
3. Avoid putting too much unfrozen material into the freezer at once. It takes a lot of work to remove all the heat from a large amount of material.
4. Avoid multiple opening and closing of the door. Upright freezers are inefficient as they lose all their cold air as soon as you open the door. Chest freezers do better if you must go into the unit often.

Lastly, undercharged refrigerant system can cause the same issue. If you don't have any of the other problems noted, have a serviceman check the refrigerant and fill the system as needed.

this could be an issue with the defrost cycle. if ice build up accumulates the on the inside coil (evaporator), it restricts the air flow and you get alarms for being out of temp. usual signs are ice build up around the coil area. look for that first. be sure the door closes and seals too.

Check for ice / frosting inside the freezer .... If present you probably have a defrost problem.... This causes the freezer coil to ice up and block the air flow ... the causes could be a bad defrost heater , defrost timer, defrost sensors, or control board. Also make sure that the condenser coil is clean. remove ALL dust with a vacuum and a coil brush .the coil is located either on the bottom or on the back side of the unit... You didn't give the Make and model #

The air in the freezer is circulated by a fan, there are a number of possibilities
1. Is the internal fan running, this may be switched by the door opening, to test push the small switch on the door frame ( if fitted). If the fan is running go to
2. If the fan is running can you feel air coming out of the bottom of the duct inside at the bottom.
3. If there is no air coming out of the duct the duct is possibly blocked with ice, or the cooling coil at the top is iced up.
4. If there is no air flow then the best and quickest option is to empty the freezer, store your goods elsewhere, switch it off, use a wedge to keep the door partly open and leave off for at least 24 hours. You may find a large pool of water on the floor after this and you will also need to dry out the inside of the cabinet.

Icing of this type is caused by
1. Door not being closed properly, door misaligned or faulty door seals.
2. Putting "hot" product (over 2deg C / 34 deg f) into the freezer.
3. Not covering or sealing product being stored in the freezer.
4. Defrost timing not working (ask your service guy) for this and the rest I'm afraid
5. Defrost heater not working
6. Blocked condensate drain
7. Faulty thermostat, keeps on cooling

Hope this helps

Defrost element has had it or timer will not shut unit off, check both, if both ok, check thermo fuse.
Need any more help, email me at [email protected] or call me 08 9523 0552 West Australia.
DONT FORGET TO VOTE, I JUST SUPPLIED MY TIME FOR FREE. Hope you get it sorted. Regards Russ

Does your freezer seem to be reaching around zero degrees. Second does your freezer have its condensing coil under it or on the back and is it clean. If the coils are not clean it can not disapate its heat effectively and will continue to run. If the coils are clean and the door seal is in good shape doesnt have to be perfect your unit may be low on freon. When a unit first gets low it will run all the time and actually get colder for a while then it will start loosing its ability to cool at all. The ice around the door can be caused because of air leaking in or just excess moisture in the cabinet due to a lot of new items added. I hope this helps

The doors should be warm. There or heaters in the doors or what they call a yodelers loop in the frame around the doors that keeps condensation from forming. Make sure the fan if blowing on the compressor and the fan inside the freezer is also running. If so be sure there is no ice built up on the bottom inside back panel of the freezer. If so you will have a defrost problem and the coil is full of ice and not allowing the air to flow through it and cool the fridge. If there is ice, the heater behind the panel is most likely bad.

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.

If the door seals are still pliable and intact there are two possible causes.

1/ The upper door hinge on the top of freezer unit has two adjusting screws under a plastic cover/cap which allows the upper hinge to be set forward or back altering/adjusting the spacing of the door seal to the freezer body. Moving the hinge outward at the top will cause the door to seal tighter at the bottom and lessen escaping cold air and condensation to form (water droplets). Adjust carefully so as not to create a weak seal (air gap) along other sealing edges of the door frame.

2/ Many United Refrigeration Commercial Freezers are manual defrosting. Moisture from inside the freezer can condense between the inner molded door panel (door shelves) and the exterior metal door. Usually ice buildup will occur in this space, but when defrosting or during high ambient temps the ice will melt and drip out along the bottom door edge/seal. Screws alomg the door frame (hidden by the door seal) hold the seal in place and also the inner molded door panel. The inner panel can be removed to replace the seal or to remove the ice buildup.

hector...this sounds like icing up! First thing is to defrost this unit. The ice is preventing air flow over the coils. Shut down and get warm air to the coils. Then, let everything dry. If you leave off and open for 2 days, this will do it. Causes: humid conditions, 'window shopping' or bad gaskets. If the gasket surfaces are dirty, clean them. Test any questionable areas by taking a 2-3 wide strip of paper and close the door on it. If the paper pulls easily, the gasket is bad.

Now, clean out the condenser coils. They are located in the back or under the unit and are always painted black. Then, have a look at the compressor. It is that big black thing in the bottom with pipes sticking out of it. Look at the larger pipe. When you start the unit, it should frost and then either dry off or condense water after about 5 minutes. If it stays frosty or is not cold, you need gas. If the unit passes all these tests, you may have a defrost timer issue. Let me know.