When a heat pump failure threatens the comfort of a Pointe-Claire home
At AirGreen , we often receive urgent calls from customers whose HVAC systems are showing signs of weakness, especially during seasonal transition periods. This is exactly what happened recently in a single-family home in Pointe-Claire , on Montreal's West Shore. The owner, concerned that his Fujitsu wall-mounted heat pump was no longer blowing hot air despite a cool outside temperature, contacted us for a quick diagnosis and a complete repair .
Fujitsu System Description
The installation in question featured a Fujitsu Halcyon model , a unit renowned for its quiet performance and energy efficiency in cold climates. This type of wall-mounted heat pump is very popular in suburban residences in Montreal and Laval thanks to its ability to provide energy-efficient heating and cooling, while blending harmoniously into the building's façade.
The outdoor unit, mounted on a raised galvanized steel support, was exposed to a semi-shaded environment, near a red brick wall typical of Pointe-Claire buildings.
Diagnosis and identification of the problem
Upon our arrival, our technician carried out a complete inspection of the system . The first observations:
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The outdoor unit was working, but no heat was being produced inside.
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The outdoor fan was running at low speed.
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The condensate drain pipe showed signs of partial obstruction.
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An intermittent error on the electronic board appeared on the interior control panel.
After checking the refrigerant pressures and supply voltage, we identified two combined causes:
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A partial lack of R-410A refrigerant , caused by a slow leak at a flare fitting.
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An unstable cycle inversion electronic card (hot/cold mode), causing erratic switching.
Steps of repair
Our certified technicians have undertaken the following steps:
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Recovery of residual refrigerant gas in accordance with environmental standards.
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Welding and resealing of the flare connection with the addition of a specialized sealant.
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Replacement of the electronic card with an original Fujitsu component.
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Vacuum the entire circuit for 30 minutes to remove any moisture.
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Recharge with R-410A according to the manufacturer's precise specifications.
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Complete operational test : control of temperature differential, pressure, electrical current and mechanical noise.
After these interventions, the system regained its optimal performance, blowing stable hot air at more than 45°C from the indoor unit.
Results and maintenance tips
The client immediately regained comfort, and energy consumption returned to normal levels. We recommended a complete annual maintenance before each winter, including:
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Cleaning the outdoor coil and indoor filter .
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A check of the wiring and the electronic card .
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A refrigerant pressure check .
These simple actions can prevent the majority of compressor or cycle inversion breakdowns.
AirGreen Expertise in Pointe-Claire and the Montreal region
At AirGreen, we put our expertise in Fujitsu wall-mounted heat pump repair at the service of families in Montreal, Laval, the North Shore, and the South Shore . Our mobile teams respond quickly, with original parts and certified expertise on all major brands (Fujitsu, Gree, Midea, Sharp, Goodman, and more).
We understand that every repair is unique: weather conditions, condenser environment, system age, and maintenance frequency. That's why we customize each repair and provide the customer with a detailed report, ensuring transparency and reliability.
To remember
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Initial problem: no heating, electronic error.
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Solution: leak repair, card replacement, R-410A recharge.
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Result: restored performance, improved efficiency, regained comfort.
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Location: Pointe-Claire, Montreal (West Shore).
By entrusting your HVAC system to AirGreen, you choose peace of mind, performance, and durability . No matter the brand or complexity of the problem, our experts always find a quick and lasting solution.