Should I repair or replace heat pump?
Compare confirmed fault, safety, age, condition, efficiency, parts availability, warranty, recurrence, and total installed cost before deciding about heat pump.
What this means
Heat pump covers heating mode, outdoor unit, defrost, backup heat, and efficiency. Relevant observations include Air feels cool in heating mode, Outdoor unit is covered in ice, Backup heat runs constantly, Outdoor unit will not run, Heating costs increased suddenly. The correct response depends on age, design, climate, usage, installation, recent work, and the exact manufacturer instructions; these observations narrow next steps but do not prove a failed part.
Safe checks
- Obtain a confirmed diagnosis and itemized repair scope for heat pump.
- Compare repair cost and expected remaining life with a fully installed compliant replacement.
- Include safety, efficiency, warranty, compatibility, recurrence, disruption, and disposal—not purchase price alone.
Stop and get help if
- Leave for a gas odour or carbon-monoxide alarm; stop for smoke, scorching, damaged wiring, or repeated breaker trips.
- Do not open combustion, refrigerant, high-voltage, or sealed compartments.
Which professional to call
Use a qualified HVAC technician when the condition exceeds safe user access or the visible checks do not explain it.
Find the relevant tradeSource and method
This answer combines HomeSOS's structured triage with safety boundaries supported by a public source. It does not replace inspection.
Health Canada: Home safetyReviewed August 12, 2026