Thermador PRD486WDGU Pro Grand 48" F1 Error Fix: Oven Temperature Sensor Failure

Error code F1 on the Thermador PRD486WDGU Pro Grand 48" means: Oven Temperature Sensor Failure. This error indicates the oven temperature sensor has failed or is not responding. It is triggered when the control board detects an open or short circuit in the sensor, causing inaccurate temperature readings and oven heating issues.

The most successful fix is "Replace Oven Temperature Sensor" (medium difficulty, ~30 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

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

DIY cost: $20-$40. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

The Thermador PRD486WDGU Pro Grand 48" has 8 other known error codes, including: F10 (Oven Door Gasket Failure), F11 (Oven Thermal Fuse Blown), F12 (Oven Door Switch Malfunction), F13 (Oven Sensor Thermistor Open), F14 (Oven Relay Stuck), and 3 more.

Error code F1 also appears on 6 other Thermador models: DWHD660WFM 24 in 42 dBA Sapphire Series Dishwasher with Star Dry and WiFi Connectivity, 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, PRL366WG 36 in Pro Grand Range with 5 Burners, 22,000 BTU Power Burner, and Convection Oven, 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.