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Member Since 13 Aug 2013
Offline Last Active Aug 27 2013 03:31 PM

Topics I've Started

sub-zero vacuum condenser light, compressor always on

13 August 2013 - 11:29 AM

I have a ~15 year old Sub-Zero 642 that has the "vacuum condenser light" on and the refrigerator compressor runs continuously:

  • The condenser is very clean--blown out with compressed air, and vacuumed. The condenser fan is running normally.
  • The freezer side seems to be running fine, and maintains a 0 degree temperature.
  • The refrigerator side maintains a 38 degree temperature, although the compressor runs continuously (for months now)
  • The refrigerator has been unplugged and replugged. This has the effect of resetting the "vacuum condenser light", but 12 hours later the light will come on again. The compressor of course will start up at some point then stay on.
  • There does not seem to be any frost/ice build-up on the rear wall of the refrigerator
  • I raised the thermostat on the refrigerator to 44 degrees for 24 hours. During this period the compressor actually did cycle on/off (at least once). After this I returned the thermostat to 38 degrees, and the refrigerator once again maintains that temperature (with the compressor running continuously).
  • The refrigerator door seals appear to be in good condition without rips or tears. "Suction" is not nearly as strong as the freezer side (after closing the door and immediately trying to open it), and probably isn't as strong as it once was.

Any ideas on what to check or where to continue my troubleshooting?





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