Thermador PRD486WDGU Pro Grand 48" F4 Error Fix: Broil Element Failure

Error code F4 on the Thermador PRD486WDGU Pro Grand 48" means: Broil Element Failure. The broil element is not heating due to failure or electrical fault. This error occurs when the control board detects no resistance or an open circuit in the broil element, impacting broiling performance.

The most successful fix is "Replace Broil Element" (medium difficulty, ~25 minutes). Estimated DIY cost: $30-$50. 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 Broil Element") is rated medium difficulty and takes about 25 minutes. Tools needed: Phillips screwdriver, Multimeter.

DIY cost: $30-$50. Professional repair typically costs $130-$200. 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: F1 (Oven Temperature Sensor Failure), F10 (Oven Door Gasket Failure), F11 (Oven Thermal Fuse Blown), F12 (Oven Door Switch Malfunction), F13 (Oven Sensor Thermistor Open), and 3 more.

Error code F4 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.