WARNING Safety is of the utmost importance whilst working on the system. The power supply must be disconnected before attempting any procedure. Wear protective clothing and an appropriate face mask in the attic space if recommended by the insulation provider. Gloves should be worn when handling filter media.

Three year service by ProAir technician. 

This consists of cleaning the heat exchanger, checking the fans for dirt build-up and clearing of same, check and cleaning of condensate drain, replacing of filters and overall check of the system operation.

A record of all maintenance work done should be kept. 

On a regular basis check the outdoor intake and exhaust hoods. Remove leaves, dirt, waste paper or other obstructions that may be blocking the outside vents of your HRV. Remove and inspect the grilles covering the duct ends. Without this vital airflow, the unit will not function properly. During winter, clear any snow or frost buildup blocking outside vents. Once a year, check all the ductwork leading to and from your HRV. If ductwork is damaged, crushed, kinked etc. contact ProAir to have it repaired correctly.