Thermador PRL366WG 36 in Pro Grand Range with 5 Burners, 22,000 BTU Power Burner, and Convection Oven F8 Error Fix: Oven High Limit Thermostat Tripped

Error code F8 on the Thermador PRL366WG 36 in Pro Grand Range with 5 Burners, 22,000 BTU Power Burner, and Convection Oven means: Oven High Limit Thermostat Tripped. The high limit thermostat has tripped due to excessive oven temperature, causing heating shutdown to prevent damage or fire. The error triggers when temperature exceeds safe thresholds. Oven may not heat until reset or thermostat replaced.

The most successful fix is "Replace High Limit Thermostat" (medium difficulty, ~30 minutes). Estimated DIY cost: $25-$40. HomeMD has 2 community-ranked fixes for this error.

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

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

DIY cost: $25-$40. Professional repair typically costs $130-$180. Many homeowners save money by trying the top-ranked community fix first.

The Thermador PRL366WG 36 in Pro Grand Range with 5 Burners, 22,000 BTU Power Burner, and Convection Oven has 8 other known error codes, including: F1 (Oven Temperature Sensor Failure), F10 (Oven Relay Stuck), F11 (Oven Door Sensor Error), F12 (Oven Temperature Sensor Short Circuit), F13 (Oven Relay Open Circuit), and 3 more.

Error code F8 also appears on 5 other Thermador models: MED301JS 30 in Masterpiece Series Single Wall Oven with 4.3 cu ft Capacity and Steam Bake, PODS301W 30 in Wall Oven with 4.3 cu ft Capacity and Convection Cooking, PRD366WGU Pro Grand Range, PRD486WDGU Pro Grand 48", T36BT925NS 36 in 20.9 cu ft Freedom® Collection French Door Refrigerator with WiFi Connectivity and ThermaFresh System. The fix may vary by model, so check each model's specific page for tailored repair steps.