Carrier Split-System Air Conditioner

How this equipment fouls

The outdoor coil collects airborne debris at ground or wall level, where it also catches grass clippings, road dust and snow spray. The indoor coil accumulates the dust that passes the filter, and the drain pan below it grows biofilm because it is permanently damp during cooling.

Common failures

• Outdoor condenser coil matted with debris, reducing heat rejection
• Indoor evaporator coil fouled, cutting capacity and causing icing
• Condensate drain blocked by biofilm, producing overflow and water damage
• Blower wheel loaded with dust, sharply reducing delivered airflow
• Line-set insulation degraded, wasting capacity and causing condensation

Maintenance that prevents them

• Clean the outdoor coil annually and keep a clear air path around it
• Service filters on a schedule matched to occupancy and dust load
• Flush the condensate pan and drain, and confirm the trap is holding
• Clean the blower wheel when airflow drops rather than only on failure

Operating in Montreal & Quebec

Outdoor units on the ground in Montreal are exposed to snow load and plough spray. Keeping the clearance zone open through winter prevents ice packing into the coil.

About Carrier

One of the largest global HVAC manufacturers, with a broad commercial range spanning rooftop units, applied air handling, VRF and ductless equipment.

Climeo is an independent cleaning specialist and is not affiliated with, endorsed by, or an authorised dealer for Carrier. Equipment names are used only to describe the equipment serviced.