Viking Range F4 Fault Code
F4 on a Viking range or wall oven triggers when the oven temperature exceeds the set point by more than 50°F. The ERC detects that the oven is overheating and shuts it down as a safety measure. F4 is typically caused by a failed oven relay on the ERC that has stuck closed, a stuck-open bake or broil element, or a failed temperature sensor sending an artificially low reading to the board.
What Causes the F4 Error?
The relay on the control board that powers the bake element has stuck in the closed position, keeping the element on continuously until the oven overheats.
A sensor reporting a lower temperature than actual causes the ERC to keep heating past the set point.
Basic Steps Before Calling a Technician
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01Do Not Use the Oven
F4 indicates a temperature control failure. Do not use the oven until professionally repaired.
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02Circuit Breaker Reset
Switch off the breaker and restore power. If F4 returns during use, call for professional service.
When to Call a Technician
F4 requires professional diagnosis immediately. A stuck relay can cause the oven to overheat dangerously. Our technician identifies whether the ERC relay or sensor is at fault.
Book a Technician →Estimated range for parts and labor. Your technician provides an exact upfront quote before any work begins. Diagnostic fee is applied toward the repair cost.
- Genuine Viking OEM parts only
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- Same-day service available
Other Viking Range Error Codes
Viking F4 Error Code — Frequently Asked Questions
Common questions about Viking appliance repair answered by our certified technicians.
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Yes. F4 indicates the oven overheated past a safe threshold. Do not use the oven with an active or recurring F4 fault until professionally repaired.
Fix Your Viking F4 Error Code Today
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- Upfront pricing — no hidden fees
- 30-day parts & labor warranty
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