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Viking Refrigerator Error Code 1 Blink and pause

Shorted or open thermistor.

Viking codesViking refrigerator codes

Shorted or open thermistor.

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What 1 Blink and pause means on a Viking refrigerator

The 1 blink and pause error code on a Viking refrigerator indicates a fault condition with a thermistor, specifically a shorted or open circuit within the temperature sensing circuit. Thermistors are negative temperature coefficient (NTC) resistors that change resistance in a predictable manner as temperature changes. The control board continuously monitors this resistance to determine compartment temperature. When the resistance falls outside the expected range, either dropping near zero ohms (shorted) or climbing to an infinite/unmeasurable value (open), the board flags this fault and signals it through the blink code.

A shorted thermistor occurs when internal insulation breaks down and resistance drops dramatically, causing the control board to read an unrealistically low temperature. An open thermistor occurs when the sensor wire breaks or the component itself fails internally, resulting in no continuity through the circuit. Both conditions prevent accurate temperature regulation, which can lead to compressor cycling issues, improper cooling, or continuous running. Wiring harness damage between the thermistor and control board can mimic either fault condition and should be inspected alongside the sensor itself.

Diagnosing this fault requires a multimeter to measure thermistor resistance at a known temperature and compare it against the expected specification curve. Inspect the connector and wiring harness for corrosion, pinched wires, or breaks before condemning the sensor. If wiring checks out, the thermistor itself will need replacement to resolve the fault.

Source: manufacturer service documentation.

Common causes of 1 Blink and pause

  1. 01

    Failed thermistor

    Part replacement

    The thermistor itself has failed internally, either developing an open circuit (no continuity) or a short circuit (near-zero resistance). Testing with a multimeter will show resistance that is either infinite or essentially zero, outside the normal operating range.

  2. 02

    Damaged wiring harness

    Wiring / connection

    The wires connecting the thermistor to the control board may be pinched, broken, or corroded, mimicking an open or shorted sensor. Inspect the full length of the harness and connector pins for visible damage or corrosion.

  3. 03

    Corroded or loose connector

    Wiring / connection

    The thermistor connector can accumulate moisture and corrosion over time, increasing resistance or breaking the circuit intermittently. Disconnect, clean, and reseat the connector to check if the fault clears.

  4. 04

    Control board fault

    Part replacement

    If the thermistor and all wiring test within specification, the control board may be misreading the sensor signal due to a failed input circuit. This is less common but possible after the sensor and wiring are ruled out.

See the test procedure for each cause

Frequently asked questions about 1 Blink and pause

What does 1 Blink and pause mean on a Viking refrigerator?
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.
Can I fix the 1 blink and pause error on my Viking refrigerator myself?
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.
Is it safe to keep using my Viking refrigerator when the 1 blink and pause code is active?
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.
How much does it cost to repair the 1 blink and pause error on a Viking refrigerator?
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.
Will resetting my Viking refrigerator clear the 1 blink and pause error code?
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.

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