Fast and precise intervention by AirGreen
At AirGreen , we pride ourselves on providing reliable and meticulous HVAC repair services across Montreal's North Shore . Recently, our team was called to Sainte-Thérèse to diagnose and repair a Gree wall-mounted heat pump installed on the balcony of a recent condo. The intervention perfectly illustrates our approach: rigorous diagnosis, careful execution, and a constant focus on energy performance.
Context of the service call
The customer contacted us after noticing that his Gree heat pump was no longer blowing cold air despite an active power indicator light. The unit, from the Lomo+ R32 series, had only been installed a few years ago. In the first heat of June, this failure was a real nuisance.
Complete on-site diagnosis
Our certified technicians arrived quickly, equipped with their pressure gauges, charging kit and vacuum pump , in order to carry out a complete diagnosis.
The first checks focused on:
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Power supply and cable continuity.
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The pressure of R-32 refrigerant , using two-dial pressure gauges.
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The integrity of the flare fittings connecting the outdoor unit to the indoor wall unit.
The verdict: a micro-leak of refrigerant at the low-pressure fitting, caused by a slight loosening of the threads. This type of problem, common after a few freeze/thaw cycles, can impair efficiency and cause a pressure imbalance that prevents the compressor from starting properly.
Repair and refurbishment
Once the leak was identified, our team:
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Purged the system in compliance with environmental standards for R-32 gas.
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Tightened and repositioned the flare fittings using a calibrated torque meter.
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Replaced the gaskets to ensure perfect compression.
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Performed a vacuum draw for approximately 45 minutes to remove all traces of moisture.
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Recharge the system to the nominal pressure recommended by the Gree manufacturer.
After powering up again, the heat pump returned to its original performance : constant airflow, stable temperature and quiet operation.
Why trust AirGreen?
Every service call is handled with the same technical rigor and transparency. Our technicians:
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Use precision diagnostic tools (digital pressure gauges, electronic leak detectors).
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Ensure that all components comply with Gree specifications .
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Check the mechanical stability of the installation , including wall supports and condensate management.
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Provide personalized maintenance recommendations to extend system life.
We know that in residential areas like Sainte-Thérèse, Blainville and Bois-des-Filions , outdoor units are often exposed to direct sunlight and harsh weather. That's why we also offer preventative maintenance programs , including coil cleaning, airflow verification and seasonal pressure monitoring.
Final result and customer satisfaction
After our intervention, the client was able to immediately see the difference:
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Indoor temperature returned to 22°C in less than an hour.
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Reduced noise level thanks to the good balancing of the compressor.
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Normalized energy consumption based on data from its smart panel.
Before leaving, our technician took the time to explain good maintenance practices:
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Keep the internal filters clean.
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Avoid obstructing outdoor ventilation.
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Schedule an annual inspection before each summer.
The client expressed his complete satisfaction, happy to have regained the comfort of his condo without having to replace the appliance.
In conclusion
This Gree heat pump repair in Sainte-Thérèse demonstrates our commitment to providing high-level technical service, focused on durability and performance. At AirGreen , we combine expertise, speed, and transparency to ensure every customer can fully enjoy their HVAC system—whether in Montreal, Laval, Longueuil, on the North Shore, or the South Shore .