Cooling fan runs at high speed continuously or oven shuts down with fan‑related error.

Safety first: Disconnect power at the breaker. Internal metal edges can be sharp; wear cut‑resistant gloves.

• 1. Listen for fan operation: When the oven is turned on (before disconnecting power), note whether the cooling fan starts, is noisy, or fails to run.
• 2. Access the cooling fan: Remove the top or rear panel (depending on model) to expose the tangential or axial cooling fan assembly used in Fulgor Milano ovens.
• 3. Check for obstructions: Inspect for insulation, wiring, or debris caught in the fan blades. Remove any obstruction and ensure the fan spins freely by hand.
• 4. Test fan motor: With power off, disconnect the fan connector and measure resistance across the motor terminals. An open circuit indicates a failed motor. Replace the cooling fan assembly if defective.
• 5. Inspect wiring and control: Verify that the fan connector is fully seated on the control board and that there are no burnt traces or components near the fan driver (triac/relay). If the fan tests good but does not receive power when commanded, the control board may need replacement.