Viking Range Error Code 5 flashes every 4 sec

This flash pattern indicates a DSI (Direct Spark Ignition) control fault. The DSI board manages the gas ignition sequence, and this code means the control has detected an error it cannot resolve on its own. The fault may be caused by a failed control board, wiring issues, or a faulty flame sensor. A power cycle is the first recommended step to determine if the fault is transient or persistent.

You should not attempt to use the gas burners while the DSI fault is active. A fault in the ignition control means the ignition sequence cannot be properly managed, which could result in unlit gas being released. Avoid operating the range until the fault is diagnosed and resolved.

Repair costs vary depending on whether the fix requires only a service call and wiring correction or a full DSI board replacement. A wiring inspection and reconnection alone may fall into a lower cost range, while DSI board replacement including parts and labor can range from several hundred dollars depending on your location and service provider. Viking ranges are professional-grade appliances, so obtaining a quote from an authorized service technician is advisable.

A power cycle, disconnecting the range from power for at least 30 seconds and then restoring it, can clear the fault if it was caused by a temporary power disruption or a transient control error. However, if the underlying cause is a hardware failure such as a defective DSI board or damaged wiring, the 5-flash code will return after power is restored. A reset is always worth attempting first before moving on to component-level diagnosis.

Start by cycling power to the range: unplug it or shut off the circuit breaker for 30 seconds, then restore power and test the burner. If the fault clears, no further action may be needed. If the 5-flash code returns, inspect the wiring harness connected to the DSI board for loose or damaged connections. If no wiring fault is found, the DSI control board will need to be replaced.