Viking oven shows F07 and will not start; sometimes accompanied by a beeping alarm.

Safety first: Turn off power at the breaker. High voltages are present on the relay board; do not work with power on.

Steps to check and correct:

• Access relay board: Remove the rear panel or lower front panel (depending on model) to locate the relay board that controls the bake and broil elements.
• Inspect wiring: Look for burnt or discolored wires at the relay terminals. Repair or replace any damaged wiring and terminals.
• Check for burnt relays: Examine the relay board for darkened areas, cracked solder joints, or melted relay cases. These are signs of failure.
• Test heating elements: Before replacing the relay board, disconnect and test the bake and broil elements for shorts to ground using a multimeter. A shorted element can cause relay failure.
• Replace relay board: If relays are visibly damaged or F07 persists after wiring checks, replace the relay board with the correct Viking part number.

When to call a technician: Because this repair involves high-voltage circuits and board-level components, it is often best handled by a qualified technician.