I have a Frigidaire professional side by side and the freezer side was not freezing and the temps would get to the low 40’s while the fridge side was at a good 38 degree temp. At some times the unit would begin to freeze and go back to normal temps just to go wrong again. I had a service man come out and told me he thinks there is a free-on leak but and that is why the temps are up on the freezer side. I feel that if that was the case it would not go back up to a good zero degree temp.
The compressor seemed to work fine and there is no build up of ice in the unit or on the coils
Today I noticed that the freezer AND the fridge side are now both at higher than normal tempatures.
I ordered a Thermostat defrost switch hoping it will fix the problem… any ideas???