Viking Range Error Code 4 flashes

The 4 flashes error code on a Viking range indicates a gas solenoid fault. The gas solenoid is an electrically operated valve that controls the flow of gas to the burners or oven when commanded by the control board. When the control board sends a signal to open the solenoid and does not receive the expected feedback, or detects an electrical anomaly in the solenoid circuit, it triggers this fault and displays the 4 flash sequence to alert the technician.

The most common causes of this fault fall into two categories: wiring issues and solenoid component failure. On the wiring side, loose connectors, corroded terminals, pinched harness wires, or broken conductors between the control board and the solenoid can interrupt the circuit and produce this code. On the component side, the solenoid coil itself can fail due to an open winding, a short to ground, or mechanical seizure of the valve plunger, all of which prevent proper valve operation.

Diagnosis should begin with a thorough visual inspection of the wiring harness running to the gas solenoid, checking for damaged insulation, loose connector pins, or corrosion at the terminals. If wiring appears intact, the solenoid coil resistance should be measured with a multimeter and compared against the expected specification. A reading of zero ohms indicates a shorted coil, while infinite resistance indicates an open coil. Either condition confirms solenoid failure and requires component replacement. Because this fault involves the gas delivery system, the repair should be completed before operating the appliance.