What F2 (Kenmore microwave) Means
F2 on a Kenmore microwave reports the thermistor as shorted during cooking, and the published detail is precise: no heat was detected within ten seconds of a cook cycle starting.
Common Causes of F2 (Kenmore microwave)
- A thermistor shorted internally
- Damaged wiring shorting the sensor circuit
- A genuine failure to produce heat, which the sensor is correctly reporting
🔧 One Safe Check You Can Try
Unplug the microwave for a few minutes and restore power; beyond that there is nothing an owner should attempt inside the housing of a microwave.
⚠ Why You Shouldn't Go Further Than That
- The high-voltage capacitor inside a microwave can hold a lethal charge after unplugging, so the housing stays closed.
- A microwave producing no heat may have a magnetron or diode fault, and those components sit in the same high-voltage area.
- Over-the-range units are heavy and mounted above a cooking surface, so removal is a two-person job done carefully.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.