I have a small chess freezer Danby Model DCF401W. I lost everything in the freezer.
I have then ran a test. I unplugged it cleaned it and plugged it back. The temp went down to -18c and stayed there for about 24h. Then the temp went back up considerably slowly (over -2c before I proceeded with more test). I tested the thermostats with a voltmeter and it seems to work fine. I let the freezer unplugged for a couple of hours and plugged it back. It is now back to -18c!?! Could the thermostat only work randomly? It seems to be a fairly simple system: Thermostat, capacitor and compressor (No fan). Ideas?