Most sub zero fridges after serial starting with 181 have a more comprehensive diagnostic mode.

To access it press and hold the “colder” and “unit on/off” buttons at the same time and then let go.

You will be brought into diagnostic mode.
Certified Refrigeration is an independent family owned business that specializes in Sub-Zero & Wolf appliance repair in the NY, NJ, CT area. We share tips and tricks with you that we feel are good information for appliance owners. If you are in the Tri-State area, you will not find a better service provider for these appliances.

For independent service on your Sub-Zero or Wolf from the technicians in this video, give us a call.
1-800-200-2306
or schedule an appointment on our website:
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