Oven shows E13; fan symbol may flash and convection fan does not run during fan modes.

Safety first: Disconnect power. Fan blades and metal edges can be sharp; wear gloves.

• Access fan: Remove the rear interior panel inside the oven to expose the convection fan and motor shaft.
• Check for obstruction: Try turning the fan by hand. Remove any food debris or grease buildup that may be jamming the blades.
• Listen for noise: If the fan is stiff or grinds, the motor bearings are likely worn and the motor should be replaced.
• Test motor windings: From the rear of the oven, access the fan motor terminals. Disconnect one wire and measure resistance. An open circuit indicates a failed motor.
• Inspect wiring and relay: If the motor tests good, check wiring to the control board and the fan relay. A non-switching relay requires PCB replacement.
• Replace motor: Install a new convection fan motor if the original is seized or open.