Viking Refrigerator Error Code 1 Blink and pause

The 1 blink and pause code on a Viking refrigerator indicates a shorted or open thermistor. The thermistor is a temperature sensor the control board uses to monitor compartment temperature. When the sensor circuit reads outside its expected resistance range, the board triggers this fault code. The refrigerator may not cool correctly until the issue is resolved.

Operating the refrigerator with a faulty thermistor is not advisable for extended periods. Without accurate temperature sensing, the compressor may run continuously or cycle improperly, potentially causing food spoilage or compressor damage over time. Address the fault as soon as possible to protect both food safety and the appliance.

A power reset by unplugging the refrigerator for a few minutes may temporarily clear the fault code, but it will return if the underlying thermistor or wiring issue has not been corrected. The reset does not repair the failed component, so the error will reappear once the control board re-checks the sensor circuit. A permanent fix requires diagnosing and replacing the faulty thermistor or repairing the wiring.

A knowledgeable DIYer can inspect the wiring harness and connectors for visible damage or corrosion and reseat loose connections without special tools. Confirming a failed thermistor requires a multimeter to measure resistance and compare it against the expected value. Replacing a thermistor is generally straightforward, but if the control board is involved, professional service is recommended.

If the fix is simply cleaning or reseating a connector, there may be little to no parts cost. A replacement thermistor typically costs in the range of $20 to $80 depending on the specific model. If a control board replacement is required, costs can range from $150 to $400 or more for parts alone, plus labor if a technician is hired.