OK, so hoping to find a little direction here. We are having issues with our Subzero 650. We bought it 4 years ago used at a steal of a deal ($350) on craigslist. It's worked like a dream since then, although it was quite a bore to move into place and clean out. The seals are definitely bad, and need replacing, but it does have suction and seems to seal up most the time, and I push on it when closing it to help encourage this.
Recently, after we were out of town visiting family for a week, the unit began to act up. Here is a list of the symptoms:
The freezer reaches -30 (and beyond?) by the thermometer that I put in the drawer. It maxes out at -30, so it's hard to tell, but it sounds like a deep arctic freeze when I open/close it. It's a little scary! The digital display says -20 during this time, but I believe that is where it maxes out, as opposed to the -30.
The freezer compressor (the one on the left hand side when looking at the unit) makes a humming noise, runs for extremely long periods when the freeze occurs, and does not shut off when using the power button. I have to turn the breaker off, or unplug the unit to get it to shut off.
I manually defrosted the freezer when this has occured, and then set the thermostat to only +5 to lessen the work load on the unit, and it will maintain that for awhile (usually) after I have let it completely defrost for several hours.
When the unit first started to act up, it leaked water from the little copper tube that is beneath the unit. I think this is the water line for the ice maker, but I don't know. It also put out lots of little "thingies" No idea what these little balls/itty bitty donut things are.
Our unit has always gurgled, but it often makes this sound MUCH louder than it used to. It's intermittent.
The coil is clean, and yet from time to time the "VACCUUM CONDENSER" will flash. I reset this by unplugging for 30 minutes after vaccuming again. It has not come back in awhile, but it did come back even after the first attempts to clean and reset manually.
There is some condensation in the fridge, but I have *thought* I should attribute it to the bad seal. The fridge fan works, but the light is out and I need to replace that switch. I accidentally swapped these, and almost shocked myself while using a butter knife to remove the two switches and do some testing. The problems occured not long after this. Maybe I've fried something???
So today the unit was working well, until the power went out on our street for maintenance. I had just defrosted the unit yesterday because the compressor was running so long (I've been turning it off for periods during the day to give it a break when it does that). After the power outage, the freezer is no longer able to keep cold. It's 30 and climbing.
Could it be the thermostat? The control board? Any other ideas? Are these things I can trouble shoot and DIY?