Clean filters/clearances and document model, refrigerant and symptoms without opening the circuit.
V18 — specialized system
Heat-pump refrigerant circuit
Separate homeowner maintenance (filters, drains, clearances) from refrigerant, pressure, leak, recovery and decommissioning work.
Checked: 2026-08-22
Loss of performance, abnormal icing or noise may require professional diagnosis rather than arbitrary refrigerant charging.
Any handling, charging, draining, repair or recovery of halocarbons requires the appropriate qualification in Quebec.
Useful tools / data
- Model/refrigerant nameplate
- Maintenance history
- Icing/condensate photos
What the professional checks
- Leak-test and measure circuit
- Recover/charge under rules
- Commission/decommission correctly
Sources and limits
Triage prepares decisions and quotes; it does not replace permits, calculations, inspections or regulated trades.
Related path
Continue with the right tools
These links connect this page to the next useful checks and decisions without repeating the full content.
Track energy consumptionTrack kWh, costs, billing periods and consumption intensity over time.Open →Prepare home electrificationDocument panel, service, major loads and future projects before electrical assessment.Open →Estimate solar potentialTurn an official municipal yield into production, savings and simple payback.Open →Compare repair versus replacementCompare two strategies over the same horizon with recurring costs and residual value.Open →Check financial assistanceReview relevant Canadian and provincial programs before committing to work.Open →
Hidden details to verify before repair or enclosure
These diagnostics separate simple maintenance from measurement-first and conditions where structure, fire or services require professional review.
V30
Shared, access and specialized interfaces
V30 connects projects where multiple systems, owners or rules meet.
V31
Commissioning and everyday safety
V31 helps verify systems after work and document the values that make a home safer to operate.