Viking Range Error Code 2 flashes then 4 seconds OFF

This flash pattern indicates an RTD probe error, meaning the oven's temperature sensor is sending a resistance reading that falls outside acceptable limits. The RTD probe is located inside the oven cavity and is responsible for monitoring cooking temperature. The control board cannot safely regulate oven heat without a valid sensor signal, so it displays this fault code through the cycle light on the control panel.

It is not recommended to operate the oven while this fault is active. The error indicates the control board cannot accurately read oven temperature, which means it may overheat or fail to reach the correct temperature without any reliable feedback. Continuing to use the oven in this condition could pose a safety risk and may cause additional component damage.

Power cycling the range by unplugging it or turning off the circuit breaker for a few minutes may temporarily clear the error, but it will return if the underlying RTD probe or wiring fault has not been resolved. A reset does not fix the hardware issue causing the fault. The error will persist or reappear until the faulty component is repaired or replaced.

A knowledgeable DIYer can perform the initial diagnostics, including checking the RTD probe resistance with a multimeter and inspecting wiring and connectors for damage or corrosion. Replacing the RTD probe is also a relatively straightforward repair involving removing a retaining bracket inside the oven cavity and unplugging the connector. However, if the wiring harness or control board needs replacement, professional service is recommended to ensure correct installation and safety.

Repair costs vary depending on the failed component. An RTD probe replacement typically involves parts costs in the range of $30 to $80, plus labor if a technician is hired. If the control board is the cause, parts alone can range from $150 to $400 or more, with additional labor costs on top. Getting a diagnostic visit from a certified technician will provide a more accurate estimate for your specific situation.