Kenmore Microwave 721.88512900 (72188512900, 721 88512900) Parts

This air tunnel directs heated air from the blower assembly into the dryer drum to maintain proper airflow and drying performance. Replaces a cracked or damaged duct to restore efficient air circulation and reduce drying time variability. What it does:

• Channels warm air from the blower to the drum for consistent drying and heat distribution
• Helps maintain proper venting and prevent hot spots that can cause uneven drying
• Commonly needed when cracks, breaks, or blockages cause poor airflow or extended dry cycles
• Contributes to normal operating airflow; damaged tunnels may lead to longer run times or reduced efficiency

• Disconnect power to the appliance before beginning any repair
• Access typically requires removing the dryer's front or rear panels
• Inspect surrounding seals and fasteners; replace any broken clips or gaskets to ensure a proper seal
• If you smell burning or see significant lint buildup, clean the lint and vent system before reassembly; consider a full vent inspection