Rapid intervention for a broken Fujitsu system
On a hot day in Saint-Bruno , a homeowner contacted us about a problem with a Fujitsu wall-mounted heat pump that was no longer blowing cold air. Installed on the brick side wall of the residence, the outdoor unit was showing signs of electrical overload and low refrigerant pressure. At AirGreen , we know how essential these systems are to maintaining consistent comfort, both in summer and winter.
Accurate diagnosis and causes identified
Our certified technician quickly arrived on site. After a visual inspection and some testing, three issues were identified:
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Accumulation of debris under the unit and around the drain pipe, causing poor condensate drainage.
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Abnormal R-410A refrigerant pressure , indicating a slow leak at the flare fitting.
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Premature wear of the power cable exposed to the weather without adequate protective sheathing.
These combined conditions caused intermittent compressor operation , a noticeable lack of cold inside, and increased energy consumption .
Steps of repair
To restore the proper performance of the Fujitsu heat pump, our team undertook a series of methodical interventions:
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Complete cleaning of the installation area : clearing of debris and repositioning of the drainage pipe to prevent any water backflow.
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Checking the refrigeration circuit : nitrogen pressure test, leak detection with foam solution and repair of the defective connection.
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R-410A refrigerant gas recharge according to Fujitsu specifications, with discharge pressure and temperature readings for optimal calibration.
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Replacement of the power cable and addition of a UV protective sheath to extend the life of the electrical connection.
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Complete performance test including measurement of the temperature differential between incoming and outgoing air.
Result: efficiency and comfort restored
Once the repair was completed, the Fujitsu Halcyon system resumed normal operation, reaching a discharge temperature of 7°C after only a few minutes. The compressor stabilized, pressures returned to recommended values, and the unit resumed a smooth and quiet operating cycle .
The customer immediately noticed the difference: a comfortable home again and a more energy-efficient system.
Best practices recommended by AirGreen
In order to prevent this type of breakdown from happening again, we recommended several preventive actions to the customer:
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Have the internal filters cleaned every two months during the summer season.
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Visually check exterior fittings at each change of season.
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Schedule annual preventative maintenance with an AirGreen certified technician.
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Maintain a clear space around the outdoor compressor to ensure good air circulation.
AirGreen expertise serving the South Shore and Greater Montreal
At AirGreen , we operate in Montreal, Laval, Longueuil, on the North Shore and the South Shore for the maintenance, repair and installation of wall-mounted, central and multi-zone heat pumps . We work with the biggest brands on the market, including Fujitsu, Gree, Midea, LG, Sharp, Daikin and Bosch , and each of our interventions aims to guarantee performance, reliability and lasting comfort .
This repair in Saint-Bruno perfectly illustrates our approach: precise diagnosis, rapid intervention and lasting results .