Heat pump maintenance checklist
Ten minutes of routine care keeps a heat pump efficient and helps it last 15 years. Here is exactly what to do — and what to leave to a pro.
What you can do yourself
- Filters — check monthly, replace every 1–3 months. The single most important task.
- Outdoor unit — keep ~2 ft of clearance; clear leaves, grass and snow; gently rinse the coil and straighten bent fins.
- Condensate drain — flush the drain line and pan periodically (a little vinegar) to prevent clogs and water damage.
- Indoor vents — keep registers open and unblocked for proper airflow.
- Listen & watch — odd noises, ice that will not clear, or weak airflow signal a problem early.
Seasonal rhythm: check the filter monthly, clear debris around the outdoor unit each season, and book a professional tune-up twice a year — before cooling season in spring and before heating season in fall.
Yearly professional service
Have a technician tune the system once a year (ideally before heating season). A typical visit checks refrigerant charge, electrical connections, the reversing valve and defrost cycle, coil cleanliness and airflow. It costs about $100–$200 and catches small issues before they become $1,000 repairs.
Why maintenance pays off
A neglected heat pump can use 10–25% more energy (higher bills), strains components (earlier failure) and may void its warranty. Routine care protects all three — the cheapest "upgrade" you can make, and it helps the system reach its full 15-year life.
Frequently asked questions
How often should a heat pump be serviced or tuned up?
Book a professional heat pump service or tune-up twice a year — before cooling season in spring and before heating season in fall — and check or change the filter every 1–3 months yourself.
Can I maintain a heat pump myself?
You can handle filters, clearing the outdoor unit and keeping vents open. Leave refrigerant, electrical and sealed-system work to a licensed tech.
Does maintenance really save money?
Yes — clean filters and coils plus a correct refrigerant charge keep efficiency up and prevent costly breakdowns.
Related
Sources & further reading
Educational guide, reviewed against US DOE & ENERGY STAR guidance and updated June 2026. Estimates only — not a substitute for a professional assessment or Manual J load calculation.