Question about Sub-Zero 680 / F

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Refrig lights go on and off intermittently when opening and closing refrig door

Sub Zero model 642

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Re: refrig lights go on and off intermittently when...

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

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Re: refrig lights go on and off intermittently when...

Check light bulb as it can be loose. Door light has a bad contact

Posted on May 22, 2014

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How do I change the door panels on a model 642/F

If you have an overlay door, by removing the door handles, should be about 6-8 screws located when you open the door look at the handle, you should see these screws run top to bottom.

I hope this helps.

Oct 12, 2013 | Sub-Zero 642

1 Answer

LCD panel and lights not working

On your Sub-Zero 642 Your display will not work unless your refrigerator lights work.
1st. Make sure your light bulbs are good.
2nd. Check your refrigerator door light switch.
3rd. The subzero uses a thermal overload to kill your lights if the door is left open to long.

Mar 26, 2012 | Sub-Zero 642

1 Answer

Turn off code for sub zero refrig 642

Hi Dave,
On your control panel, do you have a (bell) logo? If so, press and hold that button unit the code disappears, it could take ten seconds or so, you should hear a beep. If not, turn the unit off for about 1-2 minutes by the control panel on/off switch, then when you turn it back on it should not re-appear. It depends on the model and version software in the unit on how to remove the service light and error codes. But if you continue to receive error codes you will need to have the unit looked at by a certified technician to prevent bigger problems down the road. I am a certified technician and willing to lead a hand when possible. You code 24 is a defrost over heat fault, which can happen from time to time, every-time I found this code I could never find an error in the system or defrost hardware, when I cleared the code, it never appeared again. I hope this helps.

Nov 06, 2011 | Sub-Zero 642

2 Answers

Problem openning door

when you close the door a reverse cycle fan sucks all the waisted air the fridge has just been exposed to out of the unit so it creates a good seal around the door rubbers this is perfectly normal .

please rate ..

Jul 04, 2010 | Sub-Zero 642

2 Answers

My sub zero 642 just starting making a humming

It is your evaporator fan. When the door opens power is cut to the fan motor.

Apr 29, 2010 | Sub-Zero 642

3 Answers

How do you tighten a loose handle of the fridge door? Sub zero 642

I have the Sub Zero 650. I am not sure if yours iworks same but what you do is use a 3/32 Allen wrench; as you push the handle into the screw on the door so that it is flush, you insert the Allen wrench in the hole at the bottom of the short vertical connector at top and tighten; repeat for upper or lower part of handle.

Aug 15, 2009 | Sub-Zero 642

1 Answer

I have a 642/0 side by side sub zero. Although

Has the ambient temp around the unit been going up? Depending on what refrigerant you have here the pressure temp relationship will change in the system, also when you add foodstuff, and again when you open the door.

Jun 29, 2009 | Refrigerators

1 Answer

Cannot reopen Sub-Zero 642 freezer door for 50 seconds

Yes, this is normal.  My 642 does the same thing. It seals to be more efficient while trying to cool back down after it has lost heat while open.

Jun 21, 2009 | Sub-Zero 700TR

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