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

A service call that reveals a performance problem

At AirGreen , we were recently called to Sainte-Catherine , on the South Shore of Montreal , to diagnose a Gree wall-mounted heat pump that was no longer cooling efficiently. Our team responded quickly to restore the customer's indoor comfort and restore the unit to full performance.

Initial diagnosis: abnormal loss of power

Upon our arrival, we noticed that the Gree outdoor condenser appeared to be in good visual condition, but was lacking power. The customer reported that for the past few days, the heat pump had been blowing lukewarm air despite a high indoor temperature.

Our technicians started by:

  • Check the refrigerant pressure (R410A) : the values ​​were significantly lower than the parameters recommended by Gree.

  • Inspect the refrigeration connections located in the wall cover: a micro-leak was detected at the flare joint of the discharge pipe.

  • Check the interior temperature sensor and the correct operation of the electronic card.

Repair carried out: welding and complete recharging of the system

Once the leak is identified, we have:

  1. Tightened and re-soldered the flare connection with high temperature silver solder.

  2. Performed a complete vacuum to remove moisture and impurities from the circuit.

  3. Recharge the system with the exact amount of refrigerant recommended by the manufacturer.

  4. Cleaned the coils and checked for free airflow around the outdoor condenser.

Everything was done in compliance with the manufacturer's standards and according to AirGreen's professional HVAC maintenance procedures.

Final check: return to comfort and optimal performance

After restarting, the heat pump quickly reached its set temperature. The customer immediately noticed the difference:

  • Room temperature stabilized in less than 10 minutes.

  • Reduced compressor noise level thanks to load rebalancing.

  • Optimized energy consumption , since the device no longer overcompensates to reach the temperature.

Advice given to the client

Our technicians took advantage of the intervention to explain some good maintenance practices:

  • Clean the indoor module filters every 4 to 6 weeks.

  • Maintain a clearance of at least 30 cm around the outdoor unit.

  • Perform annual professional maintenance to prevent loss of performance and extend the life of the appliance.

We also offered an AirGreen maintenance plan that included a complete inspection in spring and fall to detect any signs of leaks or deterioration of components in advance.

Why trust AirGreen for your HVAC repairs

By choosing AirGreen, our customers benefit from:

  • Certified technicians specializing in Gree, Fujitsu, Midea, Lennox systems and more.

  • Precision diagnostic tools to quickly detect leaks and performance anomalies.

  • Fast service throughout the Greater Montreal area, including the South Shore , Laval , and the North Shore .

Our mission is simple: restore comfort, extend the life of your HVAC equipment, and optimize their energy efficiency .

Result: a heat pump ready for summer

Thanks to this meticulous service, the Gree heat pump is now operating at full capacity. The customer enjoys consistently fresh air and a lower electricity bill. Another successful service call, marked by AirGreen expertise and reliability.