A service call in a Montreal condo
At AirGreen , we were recently called in for a service call in Côte-des-Neiges–Notre-Dame-de-Grâce , in the heart of Montreal, for a Gree floor-to-ceiling heat pump installed in a modern condo. The customer complained of insufficient cooling performance, despite the unit displaying the correct indicator lights and no apparent errors on the remote control.
Gree floor-to-ceiling units are popular in condos and small spaces where installation constraints prevent traditional wall mounting. However, like any HVAC system, they require regular maintenance and calibration to ensure optimal performance.
Diagnosis: a revealing temperature difference
Upon our arrival, our technician took a temperature reading at the air outlet using a precision infrared thermometer. The reading showed 15.7°C , while the ambient temperature in the room was 22°C . This delta of 6.3°C indicated partial cooling , a possible sign of internal fouling of the evaporator or a slightly low refrigerant level .
A thorough inspection of the unit revealed dust buildup on the heat exchanger fins and a partial blockage of the air filter , reducing flow and cooling capacity.
Repair and maintenance steps performed
Our technicians carried out a complete overhaul of the Gree floor-ceiling system according to AirGreen standards:
-
Safe disconnection of the power supply and removal of the front panels.
-
Thoroughly clean the evaporator using a non-corrosive cleaning product and a pressure-controlled rinse.
-
Replacement of the air filter , which became ineffective after several seasons of use.
-
Check the condensate drain , often the source of bad odors and internal overheating.
-
Inspect the control board to ensure the temperature sensor is working properly.
-
Pressure test of the refrigerant circuit to check for leaks.
-
Light recharge with R-32 , the refrigerant used on most recent Gree models.
Once the maintenance was completed, the air outlet temperature dropped to 10.1°C , confirming that the heat pump was once again operating within its optimal parameters.
Result: immediate comfort and restored efficiency
Upon restarting the system, the customer noticed a marked difference in temperature and cooling speed. The smoother airflow helped stabilize the room temperature more quickly, while reducing power consumption.
We also took the time to explain some simple preventive measures to him:
-
Clean the filters every 4 to 6 weeks during the summer period.
-
Maintain a stable temperature to avoid short cycling of the compressor.
-
Schedule a complete annual maintenance , including cleaning, pressure testing and calibration.
AirGreen expertise for Gree systems in Montreal
This intervention illustrates the versatility of Gree systems and AirGreen's specialization in their maintenance. Whether it is a wall-mounted, cassette, ducted or floor-ceiling unit , our technicians are trained to efficiently diagnose and resolve any type of problem related to heating, ventilation or air conditioning.
Our team covers all of Greater Montreal , including Laval, Longueuil, the North Shore and the South Shore , with fast, professional and guaranteed service. We work on all major brands on the market, including Gree, Fujitsu, Sharp, Midea, Bosch, Lennox and Trane , and we only use certified original parts .
A lasting commitment to performance and satisfaction
At AirGreen , we don't just repair—we optimize. Every repair is an opportunity to improve the reliability , durability , and energy performance of your HVAC system. In a Montreal context where summers are getting hotter and hotter, a well-calibrated unit makes all the difference in terms of comfort and energy savings.
For this Côte-des-Neiges–Notre-Dame-de-Grâce client, the repair and cleaning of their Gree floor-to-ceiling unit not only restored the freshness of their living space, but also increased its overall efficiency—a typical AirGreen intervention.