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Modern heat pumps run quietly — 49-55 dBA outdoors at full load. When you hear a new sound, it usually means something specific. Here is a sound-by-sound diagnostic guide for what to do (or not do) about each one.
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Loud single bang on start: Compressor slug or refrigerant migration. If repeating, call CANRO. One-off banging during a defrost cycle is normal as ice cracks off the coil.
Brief hiss when system stops: normal pressure equalization. Continuous hiss while running: possible refrigerant leak — call us, do not wait.
Click at start/stop: normal contactor or relay. Repeated clicking with no startup: capacitor failing or compressor locked — $250-$500 typical repair.
Free in-home consultation. TSBC-licensed technicians. FortisBC rebate paperwork handled.
📞 (604) 359-1081 Request a quoteMost often loose panel screws (homeowner-fixable) or fan blade rubbing against cage (service call).
Bearings failing on fan motor or compressor. Schedule service same week.
Low buzz indoors: often a vibration in the line set — CANRO can dampen with isolation pads. Loud buzz at outdoor unit: contactor humming, capacitor weak — service call.
Refrigerant cavitation due to low charge. Stop using, call CANRO.
Bearing wear, compressor strain, or new inverter board behaviour. New inverter-board whine at startup can be normal — confirm with installer.
Free in-home consultation. TSBC-licensed technicians. FortisBC rebate paperwork handled.
📞 (604) 359-1081 Request a quoteCANRO Heating & Cooling — TSBC Class-A gas-fitting licence · Red Seal HVAC certified · WorkSafeBC and liability insured · 4.9★ from 85+ Google reviews · Serving Metro Vancouver since 1999.
CANRO Heating & Cooling — TSBC Class-A gas-fitting licence · Red Seal HVAC certified · WorkSafeBC and liability insured · 4.9★ from 85+ Google reviews · Serving Metro Vancouver since 1999.
Selecting and servicing heat pumps in Metro Vancouver involves several local factors — climate, available rebates, code requirements — covered below. A cold-climate heat pump in Metro Vancouver delivers 2-4 units of heat per unit of electricity — meaning 200-400% effective efficiency vs 95-98% for the best gas furnace. Vancouver's mild winters (rare lows below -5°C) are ideal heat-pump territory.
Vancouver's mild winters (average lows above -5°C and rare deep cold snaps) shape equipment selection differently than colder Canadian cities. CANRO has worked with heat pump systems across Metro Vancouver since 1999, including installations and service calls in Newton, Metrotown, Cloverdale and Eagle Ridge.
Sizing. Heat-pump sizing balances heating capacity at design temperature (often -10°C in Metro Van) against cooling load. Variable-capacity units handle both ends well — over-sizing for heating causes summer humidity problems.
Lifespan. A modern heat pump installed by a qualified contractor typically lasts 15-20 years. Annual maintenance, regular filter changes, and keeping the outdoor coil clear of leaves and debris all extend service life.
Warning signs. Heat-pump issues include short-cycling, refrigerant-charge problems (low cooling capacity), defrost-cycle faults, communicating-system errors, and ECM motor failures at 12+ years.
A whole-home ducted heat pump installation in Metro Vancouver typically costs $13,000-$22,000 before rebates. After stacking BC Hydro + FortisBC + federal rebates, eligible homeowners can see net costs of $5,000-$11,000.
Yes — every heat pump is also a fully functioning air conditioner. One unit replaces both a furnace and an A/C, saves floor space, and qualifies for rebates that a separate A/C alone would not.
SEER measures cooling efficiency (higher is better, 16-22 typical); HSPF and the newer HSPF2 measure heating efficiency. For Vancouver, look for HSPF2 above 9.0 — that's the threshold for premium cold-climate performance and most rebate programs.
Current heat-pump rebates can total $11,000+ for eligible Vancouver homeowners: up to $6,000 from CleanBC, up to $5,000 from federal Greener Homes, plus income-qualified top-ups. CANRO is a registered contractor and handles the paperwork end-to-end.
Yes. Modern cold-climate heat pumps from Mitsubishi (H2i), Daikin (Aurora), Carrier (Greenspeed) and Lennox (XP25) maintain rated heating capacity down to -15°C and continue producing heat (at reduced capacity) down to -25°C — far colder than Metro Vancouver ever gets.
If you already have ductwork from a furnace, a ducted central heat pump is usually the better choice for whole-home comfort. Ductless mini-splits are ideal for additions, basement suites, garage conversions, and homes without ducts (radiant-heated houses).
To book heat pump service or get a free written quote for installation, call CANRO at (604) 359-1081 or email info@canroheat.ca. We service all of Metro Vancouver including Newton, Metrotown, Cloverdale and Eagle Ridge.
This guide was written by the CANRO Heating & Cooling team based on 25+ years of heat pump installation, repair and annual service work across Metro Vancouver. Last reviewed May 2026.
“Canro does an amazing job! Super professional and skilled with everything—boilers, furnaces, and AC. Always a pleasure working with them!”
“Five stars for Canro. We needed a replacement of a 30-year-old boiler. A new high-efficiency unit was installed—clean, professional work.”
“I can’t speak highly enough about George, who was recommended for a boiler service call for my parents’ home. George is excellent.”
25+ years keeping Metro Vancouver homes comfortable. Honest advice, upfront pricing, work that lasts.