Question about Sub-Zero 650 / O Bottom Freezer Refrigerator

3 Answers

Sub-Zero 550 Poor cooling, refrigerator stays at 50 degrees, ice/frost forms on inner back panel above veggie drawer. I have already replace the thermostat and fan.Please help!!!!

Posted by on

  • Anonymous Nov 01, 2008

    I had my door cam break and the refrigerator gasket torn, so I replaced both and now my refrigertor door does not seem to seal tight like it did. I use to have to use two hands to open it . It also had lots ice form on the lower back wall so I defrosted it - and it has already built up very thick again ( one week later) The upper shelves do not seem to cool properly.



3 Answers


I had the same problem with my 550...several times the tech came out and used a steam machine to blow out the drain...which didn't solve the problem. Finally, they ordered a refrigerator drain heater from sub-zero (part#4201290) and this finally fixed the problem. Hope this helps...I'm not a tech, just a customer. K

Posted on May 19, 2008


Leak at evap

Posted on Apr 15, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

You probably have a freon leak in the evaporator coil.

Posted on Nov 09, 2007

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Sub-Zero Model 532. The refrigerator section is freezing up. I've vacuumed the condenser area but it's still happening. Adjusting the temperature doesn't help, either.

The defrost cycle is not working there should be defrost board also should check the defrost bimetal and check heater

May 10, 2016 | Frost Refrigerators

3 Answers

I have a 601 R sub zero, my veggies are freezing on the shelf above the crisper

Check if Your fridge has ice or moisture on the back wall, behind that drawer, and if service light or vacuum condenser lights are on, if so : you will need to go thru this repair I show on my youtube chanel. Hope It helps. How To Replace Sub Zero Evaporator HD 1080

Jan 04, 2015 | Sub-Zero 601R

1 Answer

Frost accumulating on back of fridge - service light blinking


Apr 23, 2010 | Sub-Zero 650 / O Bottom Freezer...

1 Answer

Sub-zero 550. freezer icing

You probably have some food on the way. Unload the freezer and see if the door would close better. Looks like you have a warm air leak.
Sub-zero refrigerator repair in orange county, ca
appliance repair orange county, ca

Feb 06, 2010 | Sub-Zero Bottom Freezer Refrigerator

2 Answers

Ice keeps forming inside on the back panel of mysubzero model 550

If the ice is on the back panel especially a block of ice in the middle left part of your panel, then you have a sealed system problem. Check to make sure that your condensor coils above the refer are clean, and if it continues to have an ice block then you have to have a technician come out an do a major repair. This is not something you can do yourself, most subzeros have a 6 to 12 year sealed system warrantee that covers either all of the repair or just parts. This is an expensive repair if it is not warranteed, but when the refers cost 8000 to 10000 new it is usually well worth it. Most often it is the result of a slowly leaking evaporator, though most inexperienced technicians replace the compressor first, so make sure you use an experienced Sub-Zero technician. Good Luck, Appliance Specialits

Nov 12, 2009 | Sub-Zero Bottom Freezer Refrigerator

1 Answer

Ice build up behind the veggie drawer. My 550 is 13 years old. This always starts with the warm, humid weather, but this year, it is not improving as the weather turns colder. Any advice? I can't open the...

sub zero are vey expensive, and sometimes tough to diagnos, but judging by your description, i would inspect your door seal, make sure it is closing and former a good seal all the way around
the best way to handle this, is to turn it off for the day, and let it defrost for 24 hours,

Oct 13, 2009 | Sub-Zero 650 / O Bottom Freezer...

1 Answer

Freezer not working on Sub-Zero 550 Refrigerator/Freezer

You probably need to defrost freezer - frozen moisture possibly stockedevap. fan motor in the freezer. Turn it OFF for 24 hours and start itover. Make sure no moisture condensation on the freezer compartmentsurfaces as walls and shelfs. If so wipe it out. Pull out and remove upper basket from the freezer, push fan switch which is located almost under ice maker.You have to hear evaporator fan motor start working. Still not work? Call to professionaltechie! Good luck! :)


Nov 11, 2008 | Sub-Zero 650 / O Bottom Freezer...

1 Answer

Subzero Model 550, freezer not working properly

Blow out the condenser with an air compressor. Make sure the evaporator coil is not frosted up, if so, the drawer may naot have been closed properly, or you may have a defrost problem, (timer, terminator, etc). Possible freon leak in the high side drain loop. Compressor may not be pumping efficiently, could have a bad condenser fan motor.

May 28, 2008 | Sub-Zero 650 / O Bottom Freezer...

3 Answers

Sub Zero 550 Frost Build up in Refrigerator

This means you are low on freon. You will get an ice ball on the bottom left side in the back of refer.


May 27, 2008 | Sub-Zero 650 / O Bottom Freezer...

1 Answer

SubZero 550 not cooling, ice film

1. check the comp. working touch the top of the comp. 2.if the motor comp. working touch the high side tube of the motor comp. if to hot the freon is ok. 3. check the cooling fan inside.

Sep 23, 2007 | Sub-Zero 650 / O Bottom Freezer...

Not finding what you are looking for?
Sub-Zero 650 / O Bottom Freezer Refrigerator Logo

Related Topics:

1,580 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sub-Zero Refrigerators Experts

Charles T Nevin
Charles T Nevin

Level 3 Expert

4070 Answers

Sal De

Level 3 Expert

2694 Answers

John Tripp
John Tripp

Level 3 Expert

4655 Answers

Are you a Sub-Zero Refrigerator Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides