Question about Sub-Zero 650 / O Bottom Freezer Refrigerator

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Subzero 650 light won't stay on when door shut

We previously were able to have the 650 light staying on while the glass door was shut, however this has stopped, and pushing the light on/off button doesn't fix it. Any suggestions?

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Re: Subzero 650 light won't stay on when door shut

One of the 3 light bars is burned out. They are $60 each. You can find them online at

Posted on Jan 10, 2008

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Re: Subzero 650 light won't stay on when door shut

Super...sounds like the switch you're pushing is damaged. test it.

Posted on Dec 18, 2007

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Subzero regrigerator door not closing properly

Hi there,
Is it possible to elaborate a bit? Is it sticking? Jamming? Slamming? Not staying closed or sealed? Most of the time problems arise from damage to the white rubber seal (subzero's are specially fitted to ensure a stellar seal). Check along the entire rectangle surface for any cuts or problem areas.

Good luck!

Aug 16, 2014 | Sub-Zero 650 / O Bottom Freezer...

1 Answer

What is defrost overheat?

There is defrost heater which comes on in defrost cycle. defrost heater stays on certain time(lets say 15 min), but lets think it came on to defrost and melted all ice of the coils during 5 min, but we still have 10 more min design for heater to stay on. if heater will stay another 10 min it will warm up your stuff in the freezer, so everything will start to melt. to get around this, all freezers have limit thermostat(defrost thermostat), when that thermostat feels heat from heater, it will shut power off to the heater, so it still in defrost cycle, but heater will be off for another 10 min. When that thermostat get stuck in closed position(does not shut power to the heater when all ice melted out), you will have defrost overheat. so most likely that defrost thermostat needs to be replaced. here is the video how i replaced it on subzero pro series.

Apr 07, 2014 | Sub-Zero 650/SRH Stainless Steel

1 Answer

Door won t stay shut

Hate to say it, but that could be anything. I would start by emptying the fridge, shelves, drawers and all and seeing if it closes. 9 times out of 10 I see something obstructing it. If that doesn't doo it, then the door closer may be bad. They have 2 styles on this unit depending on age. either 2 white plastic cams that can break and "squish" out from between the 2 halves of the bottom hinge, or a closer arm that has lost it's tension and needs to be replaced. That would be rare, but it can happen. I have also seen one instance where the pair of switches at the bottom of the door have gotten so hard to push in, that they hold the door open. push those in by hand and make sure they don't resist too much. The other thing that can cause this is a sagging door. the lower hinge can bend or sag and the whole door droops then doesn't allow it to line up correctly with the box. look for signs of that too. Hope this helps.

Jan 05, 2014 | Sub-Zero Refrigerators

1 Answer

Subzero 650 freezer door does not shut

it does not shut because you did lot of minuts and it is frozen

Dec 29, 2012 | Sub-Zero 650 / O Bottom Freezer...

1 Answer

Subzero 695 Ice/Water dispenser problem.

maybe ice formed around chute from leaky air seal??? warm area with hair dryer blowing hot air up into chute for 10 minutes. check for water and wipe all off. unplug refg and plug in after 3 minutes to reset electronics

if helpful please rate me. if not please tell me more.

Mar 03, 2012 | Sub-Zero 695/O Side by Side Refrigerator

1 Answer

Subzero 695. The freezer is fine, the fridge is getting warm because the lights are staying on when the door is shut. I have taken the bulbs out for now to save my food in there. Any suggestions as to...

Hello Parnn,

I understand thating you are having to problems with you refrigerator one the lights are staying on, second the fridge is not getting cold.

The lights are not turning off because of the light switch. The switch needs replaced it is located on the door jamb so that when the door closes the light goes off.

The secound problem is usually the fan located with the evaperator coil. This fan pulls the air thru the coil and pushes it into the fridge section. When the unit is running you should be able to hear the fan running in the back of the freezer. If the fan is not running the freezer will stay cold but the fridge will not recieve any cool air.

In order to get parts for Sub-Zero Refridgerators you must contact them at 1-800-222-7820 and they will send you to their authorized parts distrubitors.

Thank you for choosing


Apr 16, 2011 | Sub-Zero 695/O Side by Side Refrigerator

1 Answer

Subzero 650 fridge temp says 34 but is really about 50

Is your thermometer in a glass of water? That's the way to get an accurate temperature reading. You may want to call an authorized servicer.

Jun 15, 2009 | Sub-Zero 650 / O Bottom Freezer...

1 Answer

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

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

Dec 26, 2008 | Sub-Zero 650 / O Bottom Freezer...

3 Answers

Vacuum condenser message flashing

Your evaporator needs replacing. covered under 12 yr. warranty parts only.

Jul 25, 2008 | Sub-Zero 650 / O Bottom Freezer...

1 Answer

Sub-zero 550 reefridgerator top freezer bottom - refridgerator door not staying closed

Just a guess, but I would check the gasket on the door. They can go bad or get distorted and bunch up and cause the door to bind and not close properly. Also check that the fridge is leveled properly. Will the door close if pushed? Will it stay closed?

Dec 25, 2007 | Sub-Zero 650 / O Bottom Freezer...

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