Frezzer fan won't turn off even after compressor is off

To clarify, the compressor and fan will run in defrost mode. The compressor and fan runs to dry out the air blowing onto the windshield.
Now if the condenser fan runs in "heat" you may have a problem with the fan relay or the main controller.

Usually you will get a sort of whinning/screeching noise from the fans inside the fridge/frezzer when they are not working properly but you can also get that howling noise from the fan which cools the compressor for the fridge/frezzer which is usually found underneath the Unit. All you have to do is find exactly where the noise is coming from and remember unless you have a dog that likes to lock itself in the fridge for a joke then most noises that come from fridge/frezzers are only made from the moving mechanical parts and sometimes leaking refridgerants but not often.

if ice bulid up on frezzer? if so replace thr defost heater behind frezzer panal

I don't believe you can turn off the frezzer section because most if not all frezzer/fridge units use the frezzer section to cool the fridge side!!!! that's just how they are designed.

If it was layed down to move and not let sit for a while before using it again it would not work. Somtimes leaving in off and let it settle will straighten it out but not all time. The oil in the compressor get into the cooling lines and blockes the freon. Other than that, check the condenser coil which are near the compressor. They should be warm when the compressor is runnin. If they are not warm there is a compressor or freon problem.

if you turn the temp down and the compressor works but the fan does not, replace the fan.

Main control board bad . The board controls the fan opperation and the clicking , sounds like a relay on the board . Replacing the board should solve the problem(s) .

is your freezer frezing or nothing works if the compressor is not running you can install a 3 in one relay to see if your compressor is gould this only cost about 15.00 dollars if your compressor is running then make sure the fan in running

Hello.
It sounds like your condenser fan might not be working, and causing your compressor to over heat. When you turn it down, the thermostat isn't demanding as much run time so the compressor isn't on as much, thus not overheating. Take off the back panel near the floor and see if it is turning or not. Also make sure the condenser coils underneath the frig are clean. If not them vacuum them out.
When it comes to the ice issue, you will need to be more specific. Where is the ice forming? And is it ice or frost?

Is there a little fan back there with the compressor? if so is it turning? also check the outside coil, it may be covered with dust & crap. Sometimes that is all thet it takes. A good cleaning.