Microwave over-the-range unit leaks steam or smoke into the kitchen instead of venting outside.

Safety: Turn off power and, if necessary, remove the microwave from the wall to inspect venting.

• Verify configuration: Check the installation manual to confirm whether your unit is set up for recirculating or external venting and that it matches your home ductwork.
• Inspect damper: Access the top of the microwave and ensure the damper flap moves freely and is oriented correctly.
• Check duct connection: Confirm the duct is securely attached to the microwave outlet and not leaking at joints.
• Correct installation: Reinstall or adjust the damper and ductwork as needed to ensure proper airflow.