I have a WAECO (Adler-Barber) tub freezer
with a small (like a bar fridge) spill-over fridge. All operated by a Danfoss DB50 compressor
. The compressor
and brains are five years old. The freezer
evaporator plate which goes around three sides of the freezer is 14 years old as are the lines and mechanical thermostat.
Last week I noticed that the evaporator plate only was frosted half way around the plate. The meat in one side of the freezer was defrosting. Also the compressor was working all the time. I assumed that this might be a loss of freon problem and, as I am out in nowhere and have no freon, decided that the only thing I could do was crank the thermostat to the highest and hope for the best. The temperature here varies from 75 to 85 degrees. I rotated the meat to the cold side and filled the non frosted side with rolls of bagels. I also laid a sheet of closed cell foam (about 1/2 inch thick) over the top of the inside of the freezer. It's that blue ground sheet stuff you get at Walmart.
After running the compressor continuously for six days (not a problem as I have lots of power) the other side of the evaporator plate started frosting up. The freezer appears to be working normally now. I have left the setting on maximum and the compressor is going on and off like it used to. It has been working normally for two days now.
Can anybody please tell me what is happening? Or what happened? Happy it is working but mystified. I will get the unit checked when I'm back in the States but would appreciate any input on this. Thanks.