F20
Viking · VGCC5366BSS 36 in 22,000 BTU Gas Range with Convection Oven and Sealed Burners
The sensor that detects the door lock status during self-clean cycle is faulty or not responding. This prevents the oven from starting or completing self-clean cycles.
Error F20 on the Viking VGCC5366BSS 36 in 22,000 BTU Gas Range with Convection Oven and Sealed Burners means: Oven Self-Clean Door Lock Sensor Fault. The top-ranked community fix is “Replace Door Lock Sensor” (medium difficulty, ~30 min, DIY cost: $25-$45). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · oven
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many oven repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $110-$160.
The Viking VGCC5366BSS 36 in 22,000 BTU Gas Range with Convection Oven and Sealed Burners has 8 other known error codes:
Error code F20 also appears on 3 other Viking models:
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