Question about Sub-Zero 680 / F
Sub Zero model 642
Check door light switch with ohmmeter. Check for melted insulation near light "terminator". Look for wiring diagram in ziplock behind compressor grille. Second switch at door turns compressor off when door opened. I had these problems with a 695 which I would assume is probably similar in design.
Posted on Jun 01, 2008
Check light bulb as it can be loose. Door light has a bad contact
Posted on May 22, 2014
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Posted on Jan 02, 2017
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