ERROR CODE EXPLAINED
Sub Zero 600 Series Refrigerator
Sub Zero 600 Series Refrigerator EC 05 Error Code
What it means
Sub-Zero identifies 600 Series error 05 as the refrigerator cabinet thermistor reading open or shorted for 10 or more seconds, or repeatedly reporting erratic temperatures.
Try this first
- Sub-Zero provides no customer troubleshooting procedure for error 05.
- If the issue remains, contact Factory Certified Service to schedule a repair appointment.
Can I keep using it?⚠ Sub-Zero identifies 600 Series error 05 as the refrigerator cabinet thermistor reading open or shorted for 10 or more seconds, or repeatedly reporting erratic temperatures.
Repair usually required?⚠ Follow only the manufacturer-backed checks listed below before further repair diagnosis.
If the error keeps returning
Use the linked official Sub-Zero, Wolf, and Cove support article and contact Factory Certified Service if the issue remains.
Official source
Troubleshooting information verified against manufacturer support documentation.
View manufacturer support page →Safety note:ApplianceSignal provides general troubleshooting information. Always follow the appliance manufacturer's safety instructions and disconnect power when required.