When an unexpected breakdown meets our expertise
At AirGreen , we know that a wall-mounted heat pump is more than just a device: it's the heart of home comfort, especially on Laval 's hot and humid days. Recently, we were called to Sainte-Rose for a service call on a Friedrich heat pump , whose outdoor unit was showing clear signs of failure.
The installation, typical of a single-family home, featured a Friedrich compressor mounted on a wall bracket on the courtyard side. The customer contacted us after noticing that the system was no longer blowing cold air indoors, despite a fan still being active.
Accurate diagnosis: when the heat pump blows lukewarm air
Upon our arrival, we carried out the basic checks:
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R-410A refrigerant pressures,
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Integrity of electrical connections,
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Compressor operation,
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Discharge and return temperature.
Our technicians quickly noticed abnormal pressure in the refrigeration circuit and a hesitant start of the compressor . Using our digital pressure gauge and a clamp-on ammeter, we confirmed overheating of the compressor motor , possibly due to a buildup of dust in the exchanger and a partial lack of refrigerant .
Steps of repair
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Complete Condenser Cleaning : We started by removing debris and dirt from the outdoor condenser fins. This simple step often improves energy performance and reduces stress on the compressor.
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Checking and tightening electrical connections : Some terminals had slight play which could affect the stability of the supply current.
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Electronic leak detection : We located a micro-leak at a flare fitting near the service valve.
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System Repair and Recharge : After purging and tightening the fittings, we performed a full recharge with R-410A refrigerant, respecting the Friedrich pressure ratings.
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Extended operating test : We ran the heat pump for 25 minutes in cooling mode to confirm the return of a supply temperature of 9°C at the indoor outlet.
Result: restored performance and reassured customer
After the repair, the Friedrich heat pump returned to optimal performance. The client, pleased to see the immediate difference in the temperature of his home, highlighted the speed of our diagnosis and the cleanliness of the site upon completion.
We also took the time to explain to the owner the importance of annual preventative maintenance , including:
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Cleaning the outdoor coil and indoor filter,
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Checking the compressor inrush current,
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Control of potential leaks and gas load.
Why choose AirGreen for heat pump repair in Laval
Our team of certified technicians specializes in the repair, maintenance and replacement of residential and commercial HVAC systems throughout Greater Montreal , including Laval, Longueuil, Montreal, the North Shore and the South Shore .
Every service call at AirGreen is handled with the same rigor:
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Precise and transparent on-site diagnosis ,
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Fast repair with certified parts ,
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Warranty on labor and replaced parts ,
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Personalized advice to extend the life of your devices.
In summary
The breakdown of this Friedrich heat pump in Sainte-Rose is a good example of how a simple lack of maintenance can affect the performance of an HVAC system. Thanks to our quick and methodical intervention, we were able to avoid a complete compressor replacement—a significant cost saving for the customer.
At AirGreen , our mission remains the same: to ensure your comfort in all seasons, with fast, professional and sustainable service.