Thermador PRD366WGU Pro Grand Range F3 Error Fix: Open Oven Temperature Sensor (RTD)

Error code F3 on the Thermador PRD366WGU Pro Grand Range means: Open Oven Temperature Sensor (RTD). The oven temperature sensor circuit is reading open (infinite resistance). Check the sensor wiring harness and connections. Replace the sensor if wiring checks OK.

The most successful fix is "Replace Oven Temperature Sensor (RTD)" (medium difficulty, ~30 minutes). Estimated DIY cost: $20–$50. HomeMD has 1 community-ranked fix for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

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

DIY cost: $20–$50. Professional repair typically costs $120–$200. Many homeowners save money by trying the top-ranked community fix first.

The Thermador PRD366WGU Pro Grand Range has 8 other known error codes, including: F0 (Electronic Oven Control Failure), F1 (Electronic Oven Control Failure), F10 (Control Board Communication Error), F11 (Oven Temperature Sensor Short Circuit), F12 (Oven Control Board Overvoltage Protection Triggered), and 3 more.

Error code F3 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, PRD486WDGU Pro Grand 48", 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.