What heat pump maintenance covers
- Outdoor coil cleaning and clearance around the unit
- Indoor coil, blower, and filter evaluation with static pressure measured
- Refrigerant performance verified in the operating mode
- Reversing valve operation confirmed in both directions
- Defrost sensor and board tested through a cycle
- Backup heat elements, sequencers, and contactors tested with amp draw
- Condensate drainage service, including the winter drain path
