🔥Oven / Range

F18

Viking · VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler

Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler F18 Error Fix: Oven Safety Thermostat Open

The oven safety thermostat has opened due to overtemperature or failure, cutting power to heating elements as a safety precaution. The oven will not heat until this is resolved.

critical2 fixes available

Quick Answer

Error F18 on the Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler means: Oven Safety Thermostat Open. The top-ranked community fix is “Replace Safety Thermostat (DIY)” (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.

Root Cause Analysis

Heating Element Failure → High Limit Thermostat TrippedPrimary

Motor Failure

When to Call a Professional

While many oven repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $120-$180.

Other Viking Models with Error F18

VDOF730SS 30 in 7.3 cu ft Double Wall Oven with Convection and Self-Cleaning

oven · 2 fixes

VER5366BSS 36 in 6.0 cu ft Electric Range with True Convection and Touch Controls

oven · 2 fixes

VGCC5366BSS 36 in 22,000 BTU Gas Range with Convection Oven and Sealed Burners

oven · 2 fixes

Other Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler Error Codes

Oven Temperature Sensor Fault

2 fixes

F10

Oven Fan Motor Failure

2 fixes

F11

Electronic Spark Ignition Module Failure

2 fixes

F12

Oven Temperature Sensor Wiring Fault

2 fixes

F13

Oven Thermal Fuse Blown

2 fixes

F14

Gas Valve Solenoid Coil Burned Out

2 fixes

F15

Oven Display Control Dead

2 fixes

F16

Oven Relay Stuck

2 fixes

People Also Ask About Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler Error F18

What does error code F18 mean on a Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler?

Error code F18 on the Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler means: Oven Safety Thermostat Open. The oven safety thermostat has opened due to overtemperature or failure, cutting power to heating elements as a safety precaution. The oven will not heat until this is resolved.

How do I fix error code F18 on my Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler?

The most successful fix is "Replace Safety Thermostat (DIY)" (medium difficulty, ~30 minutes). Estimated DIY cost: $25-$45. HomeMD has 2 community-ranked fixes for this error.

Is error code F18 on a Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler serious?

This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Can I fix Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler error F18 myself?

Yes — the top-ranked community fix ("Replace Safety Thermostat (DIY)") is rated medium difficulty and takes about 30 minutes. Tools needed: Phillips screwdriver, Multimeter.

How much does it cost to repair Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler error F18?

DIY cost: $25-$45. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler have?

The Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler has 8 other known error codes, including: F1 (Oven Temperature Sensor Fault), F10 (Oven Fan Motor Failure), F11 (Electronic Spark Ignition Module Failure), F12 (Oven Temperature Sensor Wiring Fault), F13 (Oven Thermal Fuse Blown), and 3 more.

Which other Viking models have the F18 error?

Error code F18 also appears on 3 other Viking models: VDOF730SS 30 in 7.3 cu ft Double Wall Oven with Convection and Self-Cleaning, VER5366BSS 36 in 6.0 cu ft Electric Range with True Convection and Touch Controls, VGCC5366BSS 36 in 22,000 BTU Gas Range with Convection Oven and Sealed Burners. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler have?

The Viking VGR5486GSS 48 in 27,000 BTU Pro Style Gas Range with 6 Burners and Infrared Broiler has 8 other known error codes:

F1 — Oven Temperature Sensor Fault (2 fixes)
F10 — Oven Fan Motor Failure (2 fixes)
F11 — Electronic Spark Ignition Module Failure (2 fixes)
F12 — Oven Temperature Sensor Wiring Fault (2 fixes)
F13 — Oven Thermal Fuse Blown (2 fixes)
F14 — Gas Valve Solenoid Coil Burned Out (2 fixes)
F15 — Oven Display Control Dead (2 fixes)
F16 — Oven Relay Stuck (2 fixes)

Which other Viking models have the F18 error?

Error code F18 also appears on 3 other Viking models:

VDOF730SS 30 in 7.3 cu ft Double Wall Oven with Convection and Self-Cleaning (oven) · 2 fixes
VER5366BSS 36 in 6.0 cu ft Electric Range with True Convection and Touch Controls (oven) · 2 fixes
VGCC5366BSS 36 in 22,000 BTU Gas Range with Convection Oven and Sealed Burners (oven) · 2 fixes

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