GE · Microwave error code

F6High cavity temperature in microwave mode

Single source High-voltage / caution

Unlock what this code means, its causes, tests and parts

Full library + AI assistant for $34.90, one time.

OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

Related diagnostic guides

Guide · Microwave

Microwave turntable not turning

Check the easy parts first: tray seating, roller ring and the plastic coupler. If the coupler does not move while cooking, the turntable motor (under the cavity floor) is the likely fault. Motor access is outside the cavity: unplug, and on any model where the cabinet must come off, follow the HV capacitor warning.

4 steps ~30 minmoderate

Guide · Microwave

Microwave sparking or arcing inside

Rule out metal in the cavity first (foil, twist ties, metal-trimmed dishes, a rack on a model not meant for it). The most common part failure is a grease-soaked, carbonized waveguide cover. Chipped cavity paint and a damaged magnetron antenna cap are next. Stop using the unit until fixed, since continued arcing can damage the magnetron.

5 steps ~30 mineasy