Question about Sub-Zero 642

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Freezer not working/but fan is running

Fridge side working fine freezer side not working--fan is working but unit is not cooling at all no service light flashing--that seems odd

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  • Master
  • 1,198 Answers

The freezer side may be icing up. Soon enough the fridge side may have problems, too. Love those Sub-Zeros, but if the defrost timer fails, it will ice up. Defrost timer is up top. A generic one will do.

Posted on Nov 26, 2013

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6ya6ya
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Posted on Jan 02, 2017

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  • 183 Answers

SOURCE: sub-zero 650 / bottom freezer

Clean fluff from condensor, turn off overnight and defrost, turn back on following day should start to work ok within 24hrs. Regards Advisor

Posted on Aug 23, 2007

JOE LLAMA
  • 26 Answers

SOURCE: subzero 690 flashing EC and service

Rhino, this is yet another simple fix. You need to call subzero and let them know that your ref section is not cooling properly. 9 out of 10 times it will be a problem with the evaporator coil needing replacement. Sub is aware of this issue and usually picks up the tab for this repair.

Posted on Mar 31, 2008

  • 1 Answer

SOURCE: subzero 690 flashing EC and service

If you replace the fan and clean the coils, and the refrigerator STILL does not cool, then contact SubZero or a service provider for an evaporator coil replacement.  Units manufacturer before mid-2003 had copper+aluminum coils that would corrode and allow all of the coolant to escape.  The (should be warranty) replacement is all aluminum.
Note the freezer does not have this issue due to the lack of liquid water.

Posted on May 12, 2008

vanni7
  • 163 Answers

SOURCE: SubZero 650 - fridge 36 to 50 deg, vac condensor light flashing

Hi!! you have a seal system problem.A leak in the evaporator..

Posted on Jan 04, 2009

wheelshot
  • 102 Answers

SOURCE: Subzero 590: freezer works, refrigerator not cooling

This is a Sub Zero and many technicians do not realize that these units most all run on 2 separate systems. 2 cold controls 2 compressors 2 evaporators. They share a condenser and condenser fan motor. What you are describing is most likely a bad cold control. It is pretty common for these to get some age and go bad. If you are very savvy with repairs yourself then if you access the compressor area and feel that the compressor on the right is cool and the compressor on the left is warm then you know that the ref. compressor has not been running. UNPLUG THE UNIT OR CUT THE BREAKER OFF. Remove the shelving from the fresh food section and the cover to the lights and the panel below the lights and lean the back panel forward to access the cold control. You will see 3 wires to the cold control. The green wire is the ground wire of corse. Unplug the other 2 wires remembering their location on the control unit. Take a jumper wire and jump these 2 wires. If when you power the unit up the right side compressor comes on then you know that your fresh food cold control is bad. Replace fresh food cold control.

Posted on Apr 11, 2009

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2 Answers

Side by side GE turbo-cool Gss25XSRBSS, the freezer seems to be fine, the fridge is not cooling. Fans seem to be running smoothly, no weird noises. Turbo cool turns on. It hasn't been running for


if you go here you can see the damper,fan assy. that's in the top of your machine in the fresh food side
http://www.repairclinic.com/PartDetail/Damper/WR49X10091/1055112
this is a damper with another fan in it,when the t-stat calls for cold air the damper door opens to let the cold air in from the freezer and the fan in it blows the cold air around inside the fridge,if the freezer is fine and the fridge side is warm most likely this is your problem,part number WR49X10091 and it's around 130 dollars.unplug the machine,remove the light cover on the ceiling,remove the 1/4 inch screws and drop the light assy.remove thhe filter cover on the right side so you can remove the damper assy.pop off the cover on the piece that runs up the back center,remove the screws to the damper,read the instructions and put it back together again.should take you around 45 to 60 minutes.hope this helps and good luck.

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