Viking Range Error Code Cycle 1s ON-1s OFF / Clean OFF

This error code indicates that the control board has detected a fault with the RTD oven probe, the temperature sensor mounted inside the oven cavity. The blinking pattern signals that the probe is either open or shorted, meaning the board cannot get a valid temperature reading. As a result, the self-clean cycle is disabled until the issue is resolved. The fault applies to Viking RH series ranges in 30", 36", and 48" configurations.

Because the RTD probe provides the temperature feedback the control board relies on to regulate heat, using the oven in bake or broil mode with a faulty probe means the oven cannot accurately control its temperature. This creates a risk of overheating or undercooking. It is best to avoid using the oven for cooking until the probe fault is diagnosed and repaired.

If only the RTD probe needs replacement, parts typically range from $30 to $100 depending on the specific probe, and professional labor for this repair generally falls in the $100 to $200 range. If the control board is also involved, total repair costs can be higher, often ranging from $300 to $600 or more for parts and labor combined. Getting a diagnostic call from a certified Viking technician will give you a more accurate estimate for your specific model.

A knowledgeable DIYer can diagnose this fault using a multimeter by disconnecting the RTD probe and measuring its resistance at room temperature. If the probe reads open or shorted, replacing the RTD is a relatively straightforward repair involving removing the old probe from the oven interior and installing a compatible replacement. However, if the probe tests normally and the issue is in the wiring or control board, the repair becomes more complex and may warrant a professional technician.

Resetting the range by cycling power at the circuit breaker may temporarily clear the fault display, but the error will return as soon as the control board attempts to read the RTD probe again. Because the root cause is a physical failure of the probe or its wiring, a reset alone will not resolve the issue. The RTD probe must be tested and replaced if faulty.