window AC maintenance checklist

Proper preventive maintenance is essential to ensure reliable performance, reduce unexpected failures, and extend the operational life of window air conditioning units.

A structured preventive maintenance program not only improves cooling efficiency but also minimizes energy consumption, repair costs, and equipment downtime.

This standard preventive maintenance procedure has been developed as a practical guide for HVAC technicians, maintenance contractors, and facility management teams responsible for servicing window-type air conditioning units. It can also be used as a training reference for newly appointed maintenance personnel involved in HVAC maintenance operations.