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Réparation d’une thermopompe murale Gree à Boisbriand
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Repair of a Gree wall-mounted heat pump in Boisbriand

Essential maintenance to restore indoor air performance and quality

At AirGreen , every service call is an opportunity to demonstrate our rigor and expertise in the field of heating, ventilation and air conditioning (HVAC) . This week, our team intervened in Boisbriand , on the North Shore of Montreal , to repair and refurbish a Gree wall-mounted heat pump showing a loss of power and a visible accumulation of dust inside the unit.

Diagnosis: Lack of cooling and limited airflow

The client noticed that the heat pump, even though it was set at 21°C, was struggling to effectively cool his main living space. In addition, a slight leak of water appeared intermittently under the wall unit .

Our technicians immediately undertook a complete diagnosis , including:

  1. Interior fan inspection : dust and grease buildup on the blades.

  2. Checking the condensate drain : presence of deposits partially blocking the flow.

  3. Evaporator control : accumulation of dirt on the coils, reducing heat exchange.

  4. Measurement of the temperature differential between the air inlet and outlet.

The results were clear: the reduced airflow and dirty heat exchange surface prevented the system from operating efficiently, unnecessarily increasing energy consumption.

AirGreen intervention: complete dismantling and thorough cleaning

At AirGreen, we take a meticulous approach to every wall-mounted heat pump repair or maintenance .
Our technician proceeded as follows:

  • Removing the cover and filters to access the evaporator.

  • Controlled pressure cleaning using a biodegradable product designed for HVAC systems.

  • Disinfection of the condensate tray and the drain pipe , to eliminate traces of stagnant humidity and the risk of mold.

  • Wiping and replacing the air deflectors .

  • Temperature sensor test and auto mode recalibration.

Once the heat pump was reassembled, we checked the operating parameters: the air flow had increased by 37% , and the outlet temperature had dropped from 16°C to 9°C , proof of restored efficiency.

Why Regular Maintenance Changes Everything

A wall-mounted heat pump like this Gree from Boisbriand operates continuously for much of the year. The natural accumulation of dust and micro-particles eventually clogs the heat exchange surfaces and impairs performance.

An annual professional interview offers several advantages:

  • Maintained energy efficiency , therefore reduced bills.

  • Extended life of compressor and internal components.

  • Healthier indoor air , without mold or odors.

  • Prevention of condensate leaks and abnormal noises.

Our customers on the North Shore , from Sainte-Thérèse to Blainville , benefit from fast and complete service, including an inspection of all critical points of their system.

AirGreen expertise: transparency, security and reliability

We apply the strictest protocols for every Gree wall-mounted heat pump repair .
Each intervention includes:

  • A detailed technical report with before/after photos.

  • A check of the pressures and temperatures of the R-32 refrigeration circuit.

  • Inspection of wiring and electrical connections .

  • Personalized recommendations based on the customer's environment and usage.

Our goal is not just to repair, but to ensure your HVAC system runs like new, quietly and efficiently.

Result: comfort restored and customer reassured

After our intervention, the Boisbriand client immediately noticed an improvement in thermal comfort and a reduction in operating noise .
The drain now works perfectly, and the air diffused is fresh and even throughout the room.

This refurbishment not only restored the system's performance, but also improved indoor air quality —a critical factor in modern, insulated homes.

AirGreen Tips for Sustainable Maintenance

  • Clean filters monthly during periods of heavy use.

  • Don't neglect professional cleaning : a complete maintenance by AirGreen in spring or fall prevents most breakdowns.

  • Watch for signs of moisture or odor : these often indicate a partially blocked drain.

  • Ensure the outdoor unit is clear of any obstructions to prevent the compressor from overheating.

With these simple steps and annual monitoring, your Gree heat pump will provide optimal performance for more than ten years.

Conclusion

This Gree wall-mounted heat pump repair in Boisbriand perfectly illustrates the AirGreen approach: a methodical, safe intervention focused on concrete results.
Every customer benefits from transparent service, clear communication and attention to every detail.

At AirGreen, we do more than just repair: we extend the life of your HVAC systems so your comfort lasts, season after season.