HVAC Maintenance Quebec — Certified Preventive Service

Annual maintenance is recommended for wall-mounted AC units and heat pumps. Ideally, service your cooling system in spring before the hot season, and heat pumps in fall if primarily used for heating.

A complete service includes: filter cleaning or replacement, evaporator and condenser coil cleaning, refrigerant level check, compressor and fan testing, electrical connection inspection, and full system testing.

The main causes are clogged filters, low refrigerant, dirty coils, or an aging compressor. Regular maintenance maintains peak efficiency and can reduce electricity consumption by 10-25%.

Odors usually come from mold in the evaporator or condensate drain, an overly clogged filter, or foreign matter in the unit. A professional cleaning with disinfectant typically resolves the issue.

No. Refrigerant is a closed circuit and does not normally deplete. If your technician detects a low refrigerant level, this indicates a leak that must be repaired before recharging the system.

You can clean or replace filters yourself (every 1-3 months depending on use). Other tasks — coil cleaning, refrigerant checks, electrical testing — must be performed by a CMMTQ-certified technician.