A service call in a heritage home with unique charm
At AirGreen , we were recently called upon to work on a magnificent home in the Westmount neighborhood, known for its old houses and period architecture. The client, the owner of a century-old residence with colorful stained glass windows and rich woodwork, was experiencing insufficient performance with his Fujitsu wall-mounted air conditioner installed in a bright stairwell.
Diagnosis: Loss of power and restricted airflow
Upon our arrival, our technician performed a complete system diagnosis . The customer had noticed that their wall unit was no longer effectively cooling the second-floor landing, despite regular maintenance.
Initial observations revealed:
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A significantly reduced airflow .
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Slightly dirty blower vanes .
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A faulty internal temperature sensor , causing the compressor to shut down prematurely.
Our team immediately undertook a series of checks:
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Filter inspection : presence of fine dust partially blocking the air intake.
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Clean the evaporator coils using a mild product compatible with Fujitsu units.
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Checking the R410A refrigerant pressure to confirm there were no leaks.
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Temperature sensor test and preventative probe replacement.
Intervention: Complete restoration of performance
Once the cause was identified, our team carried out a complete system upgrade :
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Thorough cleaning of the indoor unit, including the fins and centrifugal fan.
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Replacement of the thermal probe to ensure accurate reading of ambient temperatures.
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Checking the communication between the indoor unit and the outdoor compressor via the data bus.
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Electronic system reset to recalibrate the cooling cycle.
After these interventions, the difference was immediate. The unit was once again blowing constant and well-distributed cold air , restoring thermal comfort in the stairwell.
Result: restored comfort and optimized energy efficiency
The client quickly noticed a significant improvement:
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Stable temperature throughout the service area.
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Reduced power consumption , thanks to the return to normal operation of the Inverter compressor.
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Reduced operating noise , as the motor no longer has to compensate for insufficient airflow.
This intervention perfectly illustrates the importance of rigorous maintenance of wall-mounted HVAC systems, particularly in older homes where air circulation may be restricted by the architectural configuration.
Fujitsu Wall-Mounted Air Conditioner Maintenance Tips
To extend the life of a Fujitsu wall-mounted air conditioner, we recommend:
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Monthly cleaning of filters during periods of intensive use.
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An annual professional interview , ideally before the hot season.
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A check of the condensates and the drain , often blocked in old houses.
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A visual inspection of the outdoor coil for any signs of oxidation.
These simple actions can prevent the majority of common breakdowns, such as those encountered in this project.
AirGreen expertise: personalized service for each home
At AirGreen , we adapt each intervention to the client's environment:
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In heritage homes in Westmount, Outremont or the Plateau, we take care to preserve the integrity of the walls and woodwork during work.
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In recent condos , we prioritize acoustic discretion and energy performance.
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On the North Shore and the South Shore , we take into account climatic conditions and specific seasonal needs.
Each installation or repair is carried out according to RBQ , CCQ and CSA standards, with certified original parts.
In conclusion , this Fujitsu wall-mounted air conditioner repair in Westmount demonstrates our team's expertise in accurate diagnosis, rapid recommissioning, and performance optimization of residential HVAC systems. Through a careful approach and our experience with brands like Fujitsu, Gree, Midea, Sharp, or Lennox , we bring each system back to life while ensuring the comfort and durability our customers deserve.
AirGreen — Your HVAC expert in Montreal, Laval, Longueuil, on the North Shore and the South Shore.