Monthly: the five-minute checks
Check the air filter and replace it if it looks grey or loaded — a clogged filter is the single most common cause of poor airflow, frozen coils and overworked blower motors. Walk past your outdoor unit and confirm nothing is leaning against it or growing into it. Listen: new rattles, squeals or clicks are early warnings worth booking a diagnostic for before they become failures.
Spring (March–May): cooling season prep
Before the first hot week, clear leaves and debris from the outdoor condenser and rinse the coil gently with a hose — matted cottonwood fluff, common across the Fraser Valley in late spring, can cut cooling capacity noticeably. Test the system on a mild day rather than waiting for a heat wave, when service calendars fill up fastest. A professional spring tune-up covers refrigerant charge, electrical connections, capacitor health, condensate drainage and coil condition — the items you can't check from outside the cabinet.
Fall (September–October): heating season prep
Book furnace, boiler or heat-pump heating service before the first cold snap. A proper fall service includes combustion analysis on gas equipment, heat exchanger inspection, burner cleaning, safety-control testing and, on heat pumps, a defrost-cycle check. In our coastal climate, fall is also when to confirm condensate lines and outdoor unit drainage are clear — standing water plus a cold snap means ice where you don't want it.
Year-round: the habits that extend equipment life
Keep supply and return vents unblocked by furniture. Keep at least 60 cm of clearance around outdoor units. Don't close off more than a couple of vents to 'push' air elsewhere — it raises static pressure and stresses the blower. And log the service dates: equipment with a documented maintenance history is easier to diagnose, holds warranty coverage, and sells a home better.
What professional maintenance actually includes
A real maintenance visit is not a filter change with an invoice. Ours covers measured airflow, electrical testing under load, refrigerant verification by superheat/subcooling rather than guesswork, combustion safety on gas appliances, and a written condition report. Because NEO Service Tech is operated by a mechanical engineer with over 20 years of experience, we treat maintenance as measurement — numbers first, then conclusions.