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Réparation d’une thermopompe centrale Aire-Flo à Saint-Léonard
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Repair of an Aire-Flo central heat pump in Saint-Léonard

A system at the end of its life that finds a second youth

On the flat roof of a residential building in Saint-Léonard , we were recently called for a service call regarding an Aire-Flo central heat pump . This type of equipment, known for its robustness, nevertheless required urgent attention: the outdoor condenser fan was rusty and struggling to start, thus compromising the performance of the entire HVAC system.

At AirGreen , we regularly work on installations of this type, often installed for more than ten years. These systems, exposed to the rigors of the Montreal climate, particularly suffer from corrosion on the upper grilles and degradation of the fan motor , especially when they are located on flat roofs without shelter.

Accurate diagnosis and complete inspection

Upon our arrival, we carried out a complete inspection of the outdoor unit . Here are the main findings:

  • Heavily rusted fan grille , causing mechanical imbalance.

  • Clogged condenser , reducing heat exchange.

  • Compressor functional but noisy , sign of overheating linked to poor air circulation.

  • Metal support weakened by corrosion and freezing-thawing.

Electrical analysis confirmed that the fan motor was drawing higher than normal amperage , indicating an incipient failure. The unit was still functional, but at this rate, complete failure was imminent.

Repair Steps

Our certified technicians have followed a rigorous methodology:

  1. Thorough cleaning of the condenser using a biodegradable product to remove dust and debris accumulated between the fins.

  2. Replaced the fan motor with a compatible, energy-efficient model.

  3. Installation of a new galvanized fan grille , rust-resistant and adapted to Quebec's climatic conditions.

  4. Complete overhaul of electrical connections and replacement of the starting capacitor , often the cause of intermittent failures.

  5. Upgraded unit support , with the addition of anti-vibration pads to reduce noise and extend the life of the structure.

Tests and results

After restarting the system, several checks were carried out:

  • Refrigerant pressures within nominal values.

  • Indoor blowing temperature lowered by 11°C in less than ten minutes.

  • Condenser noise reduced by 40% thanks to the new motor and fan balancing.

  • Stabilized electricity consumption , proof of restored efficiency.

The client immediately noticed an improvement in interior comfort and a reduction in vibrations perceptible in the ceiling.

Maintenance tips to extend the life of an Aire-Flo

A well-maintained Aire-Flo heat pump can last for over 15 years . Here are our recommendations for owners of this type of system:

  • Clean the condenser coils at least once a year.

  • Check the fan grill for rust or deformation.

  • Ensure that the clearance around the unit is at least 60 cm for good air circulation.

  • Schedule annual maintenance with an AirGreen certified technician to prevent performance losses.

  • Protect the unit in winter using a suitable breathable cover.

Complete HVAC expertise in Montreal and the North Shore

This intervention in Saint-Léonard perfectly illustrates our approach: meticulous technical analysis, lasting repairs, and total transparency . At AirGreen, we know that every HVAC system tells a story—one of restored comfort, a more balanced home, and a reassured customer.

Our teams operate throughout Montreal, Laval, Longueuil, on the North Shore and the South Shore , for all types of brands: Aire-Flo, Lennox, Trane, Goodman, Fujitsu, Midea, Gree, and many others . Whether your unit is recent or older, we always favor repair before replacement , when it is technically and economically viable.

Summary of the intervention

  • Brand: Aire-Flo

  • System Type: Central Heat Pump

  • Initial problem: Rusty fan and compressor overheating

  • Solution: Replacement of the motor and fan grille, complete cleaning

  • Result: Restored performance, reduced noise, increased efficiency

At AirGreen, every repair is an opportunity to bring a system back to life while ensuring the comfort and peace of mind of our customers. This project is a perfect example: a piece of equipment at the end of its life cycle transformed into a high-performance, reliable system, ready to face several more seasons .