What F1 Means
F1 means the control board caught an internal problem it couldn't resolve on its own and triggered a safety shutdown — often traced back to bad sensor data reaching the board.
Common Causes of F1
- A failing sensor feeding the control board inaccurate data
- A loose or damaged sensor connector
- Control board fault unrelated to the sensor
🔧 One Safe Check You Can Try
Power-cycle the oven at the breaker for two minutes to rule out a temporary glitch before assuming a hardware fault.
⚠ Why You Shouldn't Go Further Than That
- Distinguishing a bad sensor from a bad board requires testing each independently with the oven de-energized — guessing leads to replacing the wrong part.
- Sensor wiring for this circuit runs near the cavity's high-heat zone, and a nicked wire here creates an intermittent fault that's hard to trace later.
- A sensor reconnected even slightly out of position can continue feeding inaccurate data even though the part itself tests fine.
- This code shares symptoms with F3/F4 sensor faults, and replacing the wrong component based on a guess is a common, costly mistake.
- Rear panel access to reach the sensor connector typically voids the remaining warranty.