Sub-Zero Wine Storage Error Code 10 1 10

Error code 10 1 10 indicates an open circuit in the Zone 1 evaporator thermistor, which is the temperature sensor for the upper wine storage compartment. The control board is not receiving a valid resistance signal from that sensor. This prevents the unit from accurately monitoring and controlling the upper zone temperature. A technician will need to measure the thermistor resistance and inspect the associated wiring to locate the fault.

Continued use is not recommended without addressing the fault. Without a functioning Zone 1 thermistor, the control board cannot reliably regulate cooling in the upper compartment, which could result in temperature swings that may compromise stored wine. It is best to resolve the error promptly to protect both the wine and the unit.

A power reset may temporarily clear the displayed error, but the code will return if the underlying open circuit condition in the Zone 1 thermistor or its wiring has not been corrected. Resetting the unit does not repair a failed sensor or damaged wiring. The fault must be diagnosed and the defective component repaired or replaced to permanently clear the code.

A knowledgeable DIYer can inspect the wiring harness and connector terminals for visible damage or disconnection, and can use a multimeter to check the thermistor's resistance. If the thermistor reads open or infinite resistance, replacing the sensor is a straightforward repair involving disconnecting the old sensor and connecting a correct replacement. However, accessing the evaporator area may require removing interior panels, and if the control board is suspected, professional diagnosis is recommended.

If only the thermistor needs replacement, parts and labor typically range from around $100 to $300 depending on your location and service provider. If the wiring harness requires repair or replacement, costs can range from $150 to $400. A control board replacement, if needed, is significantly more expensive and can range from $400 to $800 or more including labor.