A service call in the middle of summer
At AirGreen , we were recently called to Sainte-Julie , on the South Shore of Montreal , to work on a Gree wall-mounted heat pump that was no longer cooling adequately. The client, a recent condo owner, contacted us after noticing that the wall-mounted unit was blowing lukewarm air despite an indicator light indicating normal operation.
This type of problem is typical of wall-mounted heat pumps that have not been maintained for several seasons: dust, clogged filters or an insufficient refrigerant charge can compromise the overall performance of the system.
Diagnosis: a lack of thermal efficiency confirmed
Upon our arrival, our technician performed a complete analysis of the Gree system . Armed with a precision infrared thermometer , he measured the temperature of the air blown out of the wall unit. The reading showed 29.1°C , well above the normal range for air conditioning mode (which should be around 10 to 13°C at the outlet).
After checking the filters and motorized shutters, we continued the diagnosis on the external compressor. Result: the refrigerant pressure was slightly below specifications, indicating a micro-leak in the refrigeration circuit .
Repair steps: method and rigor signed AirGreen
Our certified technicians then undertook a series of meticulous steps to restore the system to perfect working order:
-
Isolation of the refrigeration circuit and leak detection using an electronic detector.
-
Locating a minor leak at the service valve connection.
-
Complete cleaning and tightening of connections , followed by a nitrogen pressure test to confirm leak tightness.
-
Complete vacuum to eliminate all traces of humidity in the circuit.
-
Recharge with R-32 refrigerant according to Gree manufacturer data.
-
Final performance check : the blowing temperature dropped to 11.8°C , a sign of optimal cooling.
Result: restored comfort and optimal performance
After the intervention, the Gree wall-mounted heat pump regained its full cooling capacity. The customer was able to instantly notice an improvement in indoor comfort , with fresh, stable air and quiet operation.
We also took advantage of this visit to offer some preventive maintenance tips :
-
Clean the air filters at least once a month during the summer season.
-
Avoid obstructing air outlets with furniture or curtains.
-
Schedule an annual professional service to check refrigerant pressure and compressor condition.
These simple actions not only increase the lifespan of the device, but also reduce power consumption.
The AirGreen difference: expertise and proximity
At AirGreen , we have built our reputation on the accuracy of our diagnostics and the quality of our HVAC repairs throughout Greater Montreal. Whether in Montreal, Laval, Longueuil, on the North Shore or the South Shore , we respond quickly to any type of problem related to your heat pump, air conditioner or multi-zone system.
We repair all major brands on the market: Gree, Sharp, Fujitsu, Midea, Bosch, Lennox, Trane, Goodman, and many others . Our technicians undergo ongoing training to stay up to date on new technologies, including environmentally friendly refrigerants like R-32 and energy-efficient systems .
In conclusion: a satisfied customer and a system ready for summer
This repair in Sainte-Julie perfectly illustrates our expertise: rapid response, accurate diagnosis and lasting results . Thanks to our work, the customer was able to enjoy a comfortable environment the same day, without costly replacements.
If your wall-mounted heat pump is blowing lukewarm air, making unusual noises, or experiencing a drop in performance, contact AirGreen . Our HVAC specialists will be happy to respond quickly to restore the comfort and performance of your unit , regardless of the make or model.