Question about Sub-Zero 650 / O Bottom Freezer Refrigerator

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Sub-Zero 550 Freezer Problem

The freezer on my mid 1990's Sub-Zero 550 just recently stopped working. The fridge still works perfectly though. Here is what happened:

We are remodeling our kitchen and moved the fridge to our living room (so now it is on thick carpet). During the move, my wife pulled the drain pan from the bottom to clean it off as it was filled with liquid and what seemed to be green mold that was very difficult to clear. We just slid the pan back under the fridge, but I don't know if it is in the right place as it is on carpet and hard to fit (not sure if this is a problem).
I first noticed that all the ice melted and food thawed out after we moved it. I looked around a little and found that the compressor switch (under the fridge at the top of the freezer, in the back left) that the drawer hits was a little lose and so the drawer did not always make contact (the result being that the compressor did not turn back on). I actually pushed the switch back in so it was being properly touched/activated. I even just taped the switch down so it does release and turn off the compressor EVER. I know the switch works because you can hear the compressor lightly hum when you push it in. (Note: also, the lights in the freezer work fine as well the light switch.) However, I came back in the morning and the freezer was still not cold. Any ideas? I felt the coils under the freezer and they are not cold or that how they are supposed to be?


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Re: Sub-Zero 550 Freezer Problem

Hi have you checked that the pipes on the back havnt been damaged in anyway and also when you move anything like a fridge or a freezer you are supposed to leave it off for a couple of hours so that the gases can settle you could give this a try just leave it off for a couple of hours if you done this after moving it then that wont be the problem because if the gases didnt settle it could cause the frezzer to stop working properly.
Are you confident in taking the back off at all thats if it is able to come off on your model if it does come off check that none of the pipes are frozen if they are switch it off leave for about an hour then use an hair dryer to melt the ice.
If ice is the case then melting it will get your frezzer working again but make sure all the ice is melted.
Make sure you check none of the gas pipes on the back became damaged if this is the case you can get them regassed for a small fee.
Let me know how you get on and ill look up your model number then i should be able to assist you further ok let us know what you do speak soon

Posted on Dec 01, 2007

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