F90 displayed, oven door will not open after self-clean or will not lock to start self-clean

Safety first: Ensure the oven is cool before attempting to release the door. Turn off power at the breaker.

• Wait for cooling: If the cycle just ended, wait until the oven is completely cool; some models delay unlocking until safe.
• Manual unlock: Access the lock assembly from the top or rear of the range. Use the manual release lever (if provided) to unlock the door.
• Inspect mechanism: Check the lock arm and linkage for binding, bent parts, or grease buildup. Clean and lubricate lightly if necessary.
• Test switches: Verify that the lock position switch changes state when the lock moves. Replace the lock assembly if the switch is faulty.
• Control output: If the motor never receives power during a lock/unlock command (qualified persons only), the control board may be defective.