A quick service call for a broken air exchanger
At AirGreen , we were recently called for a Venmar HRV 60H air exchanger repair in a residence in Sainte-Julie , on the South Shore of Montreal . The customer had noticed a notable drop in indoor air quality for several days: the windows were starting to fog up, and a slight musty odor persisted in certain rooms. Typical signs of a troubled air exchanger .
Our technician, Simon , quickly arrived on site with all the necessary equipment to diagnose the situation. The unit was suspended from the ceiling of the technical room, typical of compact installations in modern homes. At first glance, it was indeed a Venmar HRV 60H model, a unit known for its reliability, but which requires regular maintenance to maintain optimal airflow.
Fault diagnosis: blocked condensates and filters
Once the device was shut down and opened, our team carried out a complete inspection:
-
Filters clogged with dust and dirt, reducing airflow.
-
Partially blocked condensate drain pipe , causing slight water backup inside the housing.
-
Flexible air ducts slightly detached at one end, resulting in loss of efficiency and recirculation of stale air.
These combined problems perfectly explained the device's performance decline .
AirGreen intervention: cleaning, adjustment and upgrading
Our technicians undertook a complete overhaul of the air exchanger :
-
Complete cleaning of filters and replacement of filter media to restore airflow.
-
Descaling and purging of the condensate drain , ensuring smooth water flow.
-
Checking electrical connections and tightening flexible conduits with insulating sealant to prevent air leaks.
-
Testing of the blower motor and heat recovery core , confirming optimal performance after maintenance.
Within two hours, the unit was back to normal operation. An airflow measurement confirmed a return to original performance .
Results and advice for the client
The owner immediately noticed an improvement in indoor air quality . Humidity levels stabilized and the feeling of fresh air returned within a few hours of the repair.
Our recommendations:
-
Clean the filters every 3 months .
-
Have the drainage system checked once a year , especially before the cold season.
-
Schedule preventative maintenance each fall, before extended winter use.
AirGreen expertise at your service
At AirGreen, we understand the importance of a high-performance air exchanger for the comfort and health of your home. Our certified technicians travel to Montreal, Laval, Longueuil, the North Shore and the South Shore , for all types of repairs, maintenance or replacement of ventilation systems .
Whether you own a Venmar, Lifebreath, Fantech or Vanee model, we provide fast, rigorous service that complies with RBQ and CSA standards.
Thanks to our expertise, every call becomes an opportunity to bring your HVAC system back to life and extend its service life.