Not heating or cooling, unexpected cycling, outdoor-unit icing, airflow faults, and unusual operating behaviour — diagnosed by a licensed technician without unsafe DIY shortcuts.
North Shore housing includes older detached homes in Lonsdale and Capilano, renovated properties throughout Lynn Valley and Edgemont, and multi-level houses in Seymour and Deep Cove. Mechanical access, elevation changes, and floor-to-floor comfort all affect how heat pump systems perform here — and what a service call actually involves.
Heat pump faults have many possible causes. A systematic diagnostic is the only reliable way to identify what's actually wrong — symptoms alone don't confirm the fault.
System runs but can't reach setpoint in either mode. Could involve refrigerant, the reversing valve, a defrost issue, or a capacity loss — diagnosis required.
Heat pump won't start or outdoor unit doesn't come on. May indicate a tripped breaker, a control board fault, a wiring issue, or a safety lockout.
Unit starts and stops more frequently than normal. Can indicate a control issue, a refrigerant concern, or a sensor fault — each needs a different fix.
Heavy or persistent icing on the outdoor unit that doesn't clear through a normal defrost cycle. More relevant on the North Shore in cold, damp winter conditions.
Weak airflow from indoor units, uneven zone temperatures, or controls that don't respond as expected — common in multi-level Lynn Valley and Seymour homes.
Rattling, grinding, or unusual sounds from the indoor or outdoor unit. Each symptom pattern points to different components — a technician identifies the source.
Light frost on the outdoor coil during cold and damp North Shore winters is normal — heat pumps use a defrost cycle to manage it. Persistent heavy ice buildup that doesn't clear within a cycle, or icing during mild weather, is worth having a technician assess. Do not pour hot water on the unit or chip off ice manually.
Safe homeowner checks before a technician visits:
Do not attempt to add refrigerant, open refrigerant lines, bypass safety controls, open energized electrical panels, or modify wiring. Refrigerant handling requires certification under BC regulations and must only be performed by a licensed technician.
A structured diagnostic lets us identify the root cause accurately, so the repair addresses what's actually wrong.
Review the symptom pattern and any error codes on the indoor unit or thermostat. Assess system age, model, and configuration — including outdoor unit placement considerations common in older North Shore properties.
Test the system in heating and cooling mode, assess outdoor and indoor unit operation, and evaluate defrost cycle behaviour.
Check reversing valve, compressor operation, refrigerant pressures, electrical connections, sensors, and controls. Refrigerant handling follows BC regulatory requirements.
Explain the fault, the recommended repair, and the cost clearly — before any work begins.
Complete the approved repair, then verify correct operation in both modes, proper airflow, and control response before leaving.
The right answer depends on the specific fault, the equipment's age and condition, and your longer-term plans. We give you an honest picture — not a push toward the more expensive option.
Contact Climax Energy to book a diagnostic. We'll identify the fault and give you clear options — no pressure.