Why it matters
Prevents costly damageSkipping it eventually leads to water damage or an expensive repair.
Staying on schedule matters beyond the repair bill: a consistent maintenance record is one of the factors in a home's Roots Home Health Score, and well-kept homes typically sell faster and closer to asking price.
How to do it
A spring tune-up gets the air conditioner ready before the heat arrives. The technician checks refrigerant charge, electrical connections, and the coil, catching small faults that become mid-summer failures.
- Book an HVAC tech in spring, ahead of the first hot week.
- Have them check refrigerant pressures, clean the condenser coil, and test the capacitor and contactor.
- Ask them to flush the condensate drain and confirm airflow and temperature split.
- Keep the report to track refrigerant levels, since a steady drop means a leak.
Alternatives & optional extras
- A maintenance plan bundling spring AC and fall furnace visits usually costs less than two one-off calls.
- If the tech tops up refrigerant every year, push to find and fix the leak rather than refilling forever.
Time: ~1.3 hours · Typical cost: $100–$200 for a tune-up
Best left to a pro: refrigerant and electrical diagnostics need gauges and training, though you can handle filters and clearance yourself.
If you skip it
Skipping the tune-up lets small issues like a weak capacitor or low charge become a breakdown during the first heat wave.
Other air conditioner maintenance
- Flush AC condensate drain line — every 6 months
- Clear 2 ft around outdoor AC unit — once a year, ideally in May
- Replace AC air filter — every 3 months
Related systems to keep on schedule
- Boiler / radiators — start with: schedule boiler service, once a year, ideally in September
- Furnace / heating system — start with: replace hvac air filter, every 3 months
- Mini-split / ductless AC — start with: clean mini-split filters, once a month
- Tankless water heater — start with: descale tankless water heater, once a year