Gree wall-mounted air conditioner repair in Brossard

When a wall-mounted air conditioner loses its efficiency: an AirGreen intervention in Brossard

At AirGreen , we are regularly called upon to work on residential HVAC systems that are experiencing a drop in performance, often during hot weather. Recently, our team traveled to Brossard , on the South Shore of Montreal , to diagnose and repair a Gree wall-mounted air conditioner that was no longer properly cooling the apartment of a young couple living in a modern building in the Panama sector.

Initial diagnosis: a struggling Gree system

Upon our arrival, the customer informed us that his Gree wall-mounted air conditioner was working, but that the air blown remained lukewarm, even when the unit was set to its minimum temperature.
Our technicians immediately began a complete diagnosis:

• Checked the air filter : It was heavily clogged with dust and fine particles, restricting airflow and forcing the unit to work harder.

• Temperature probe inspection : it was reading incorrectly, preventing the machine from properly adjusting the cooling cycle.

• Analysis of the evaporator coil : fouling was visible, drastically reducing heat exchange.

• Refrigerant pressure : stable, excluding any gas leakage.

This combination of dirty filters and a faulty temperature sensor explained the system's reduced performance.

Step 1: Thoroughly clean the wall-mounted air conditioner

Our technicians began by removing the air filters and cleaning them with a mild, biodegradable solution designed for Gree equipment. The evaporator coil was then steamed to remove any remaining dust, pollen, and potential mold.

This deep cleaning is a crucial step: it not only restores the system's performance, but also improves indoor air quality , which is often compromised by a lack of regular maintenance.

Step 2: Replacing the temperature sensor

Once the unit was clean, we replaced the internal temperature sensor , a key part for the proper functioning of the wall-mounted air conditioner. On this Gree model, the sensor is located behind the front panel, accessible after removing the upper casing.
Installation of the new sensor was followed by a comprehensive calibration test to ensure the accuracy of the temperature readings.

Step 3: Recommissioning and final checks

After reassembly, our technicians launched a complete cooling cycle .
The results were immediate:

• The blown air dropped to 8°C , demonstrating excellent cooling performance.

• The airflow was restored to full capacity.

• The noise level of the unit has decreased, a sign of a less stressed engine.

We also checked the condensate drainage , an element often neglected but essential to avoid water leaks.

Result: restored comfort and reduced consumption

Thanks to this intervention, the client regained optimal thermal comfort throughout his home, even during the hottest days of July.
In addition, the restored performance of the air conditioner will allow a reduction in energy consumption , since the device will no longer have to operate at overspeed to reach the desired temperature.

AirGreen Maintenance Tips for Gree Wall-Mounted Air Conditioners

To avoid this type of breakdown, we recommend our customers:

• Clean the air filters every two months during the summer season.

• Have the HVAC system checked annually by a certified technician.

• Listen for unusual noises or watch for a drop in airflow, signs of a possible internal problem.

Regular maintenance isn't just about comfort—it's also about ensuring the longevity of your wall-mounted air conditioner.

AirGreen Expertise: More Than Just a Repair

Each AirGreen intervention is carried out with the same rigor:
accurate diagnosis, original parts, rapid intervention, and constant concern for customer satisfaction.
Our team is proficient in all the major brands on the market (Gree, Midea, Sharp, Fujitsu, Bosch, Goodman, Trane, etc.) and operates throughout Greater Montreal , including Laval , Longueuil , the North Shore and the South Shore .

Whether it's a simple cleaning , an electronic card failure , or a compressor problem , our certified technicians ensure lasting repairs , compliant with RBQ and CCQ standards .

Our commitment to Brossard and throughout the South Shore

In Brossard, as elsewhere, we know how essential thermal comfort is to daily well-being.
At AirGreen, we are committed to providing high-performance, reliable and energy-efficient HVAC solutions , while ensuring fast and courteous local service .

Every service call is an opportunity for us to demonstrate our local expertise and contribute to our customers' peace of mind.

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AirGreen – Air Conditioning & Heating, HVAC specialists in Montreal, Laval, Longueuil, North Shore and South Shore.