Question about Sub-Zero 690 Side by Side Refrigerator
Our vacuum condensor light keeps coming on. We've vacuumed the condensor thoroughly and when we turn it back on it goes off for awhile and then comes back on. We were told we needed to shut off the refrig, unplug it for 5-10 minutes for it to reset. When we did this, it held it's temperature and the vacuum condensor light stayed off for about 2 days, when then put the grill on the front back on and as soon as we did that, the temperature went back up to 42-44. When we take the grill off, the temp comes down but the vacuum condensor light stays on. Any suggestions???????? No ice on the back wall of the freezer and it holds it's temp.
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Posted on Jan 02, 2017
SOURCE: Sub-Zero freezer 600 series -
Our is doing the same thing, except we do not have ice forming on the back of the freezer. We were told by a refrigeration repair company that if ice is forming on the back of the freezer then the compressor is bad.
Posted on Sep 22, 2008
SOURCE: 690 SubZero Side-by-Side Fridge
One more thing to look at. There is a water drain tube that takes condensation from the inside of the refrigerator and transports it to a collection pan under the until. Subzero used a "covered coil" type tube for this. If any food particals become hung up on one of the coils in the tube water will back up and cause ice to form on the evaporator. The system is dumb and will tell you to vacuum the condensor under this condition as well. I replaced the Subzero OEM tubing with a hunk of rubber fuel line and never had ths problem again.
Posted on Sep 27, 2008
Sounds like a cold control. It is located behind the panel and can be ohmed out to check for proper operation. You need to remove the light shield then after the shelves have been taken out remove the two screws that hold the fan shroud in place. This will allow back panel to come for so you can check the cold control. It should read as a short in all positions except off when the cap tubes have come to ambient temp. If you get the back off and see ice on only a small portion of the evaporator you have a sealed system problem and need a qualified technician.
Posted on Dec 05, 2008
When copper and aluminum are connected it cannot be welded, it has to be crimped. this is a problem that is not exclusive to sub zero, an all aluminum evaporator ( if it is in the refrigerator it's an evaporator) should resolve the problem nicely
Posted on Jun 18, 2009
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