What should a technician check during a heat pump service visit in BC?

A thorough annual heat pump service visit in Metro Vancouver typically costs $150 to $300 and covers far more than a quick filter swap. Given the region's wet winters, frequent defrost cycles and wildfire smoke seasons, skipping a year can mean losing heat on the first cold night of October or facing a costly refrigerant call in July.

What a Technician Should Cover

Outdoor unit and refrigerant circuit. The technician checks refrigerant pressure and looks for leaks. Only a person approved under BC's Ozone Depleting Substances and Other Halocarbons Regulation may handle refrigerant, so confirm that certification before booking. They clean the outdoor coil, clear debris from the base pan and drainage path, and inspect the fan blade and motor. In Metro Vancouver's damp climate, the condensate drain and the unit's mounting pad deserve a close look every visit.

Electrical and controls. The tech checks capacitors, contactors and wiring connections, measures amperage draw on the compressor and fan motors, and tests the defrost board and defrost cycle. A heat pump here defrosts frequently from November through March, so a faulty defrost control is one of the more common causes of iced-up outdoor units.

Indoor air handler. The filter gets inspected or replaced (a MERV 11 to 13 filter is worth considering if wildfire smoke is a concern). The tech cleans the indoor coil, checks the blower wheel and motor, and inspects the condensate drain pan and line for blockages, which are common in humid Lower Mainland winters.

Thermostat and operating modes. Both heating and cooling modes should be tested, along with the emergency heat setting if the system has one. The technician verifies the thermostat is calling correctly and that the reversing valve switches cleanly between modes.

Airflow and duct condition. For a ducted system, the tech checks static pressure and looks for obvious duct leaks at accessible joints. Poor airflow is one of the most common reasons a heat pump underperforms in a Metro Vancouver house.

Safety and documentation. The technician should note the unit's model, serial number, refrigerant type and any readings that are drifting toward the edge of spec. A written service report lets you track trends year over year and supports any warranty claim.

What to ask before booking. Confirm the technician holds refrigerant certification under BC's regulations. Ask whether the service fee covers the diagnostic report and any minor adjustments, or only the inspection itself. If the system is still under the manufacturer's warranty, check whether the warranty requires annual service by a qualified technician to stay valid.

Technical Safety BC recommends annual servicing of all home heating appliances. That is a recommendation rather than a legal requirement, but in a climate where a heat pump runs almost every month of the year, it is easy to justify.

A well-serviced heat pump runs quieter, holds efficiency longer and gives you early warning before a small refrigerant leak or a failing capacitor turns into a $1,000 repair. Annual service is the cheapest insurance you have on a $10,000 to $20,000 system.

Good maintenance is worth doing right, and a local technician who knows Metro Vancouver's wet winters will know exactly what to look for. If you'd like, Vancouver HVAC Pro can connect you with a nearby HVAC contractor for a service visit.