A service call to a South Shore residence
At AirGreen , we often receive calls for Sanyo wall-mounted air conditioners installed in the 2000s, which are still functional but require refurbishment to ensure consistent comfort. This is exactly the case with our recent intervention in Brossard , where a customer reported that their wall-mounted unit was no longer producing cold air and was making an unusual noise as soon as it was turned on.
Complete device diagnosis
Upon our arrival on site, our certified technician noticed that the wall-mounted air conditioner, an old Sanyo model , showed several signs of wear:
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Filters clogged with dust;
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Deformed ventilation fins ;
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Air grille partially obstructed ;
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and a noisy interior fan , indicating possible rotor imbalance.
After a test run, the unit started, but the outlet air temperature remained lukewarm. A comprehensive electrical and refrigeration diagnostic revealed two main causes:
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a minor leak of R-22 refrigerant at a fitting;
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and a weakened interior fan motor , unable to maintain a constant airflow.
The steps of repair
Our AirGreen team undertook a complete upgrade of the Sanyo air conditioner, step by step:
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Deep cleaning of the evaporator coil using a specialized biodegradable product.
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Straightening and dusting the fins using a slat comb.
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Replacement indoor fan motor , genuine Sanyo compatible part.
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Repair of the refrigeration connection and nitrogen leak test .
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Recharge the refrigeration circuit with a compatible ecological replacement refrigerant (R-427A).
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Temperature sensor calibration and final performance test.
Once the system was restarted, the unit returned to optimal operation: stable cold air, reduced noise and even distribution in the room .
The importance of maintenance on older Sanyo models
Older Sanyo wall-mounted air conditioners are known for their robustness, but they require special attention over the years. R-22 , the refrigerant used in many of these units, is now being phased out due to its environmental impact. At AirGreen, we are experts in eco-friendly replacements and safe procedures for these older systems.
We recommend to our customers who own Sanyo units:
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to plan annual preventive maintenance before the summer season;
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to check the filters and blower flaps monthly;
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and to contact us as soon as abnormal noises or reduced performance appear.
These simple actions help prevent the compressor from overheating and extend the life of the device by several years.
Result: a revitalized air conditioner and a satisfied customer
After the repair, the Brossard customer immediately regained comfort . The previously noisy and inefficient unit was now operating quietly again and ensuring a stable temperature throughout the entire floor.
This type of intervention illustrates our philosophy: repair rather than replace , as long as it remains safe and economically viable. Thanks to our technical expertise and the availability of compatible parts, we offer a second life to many old devices that are still performing well.
AirGreen: your HVAC expert on the South Shore and in Montreal
At AirGreen , we work on all brands— Sanyo, Fujitsu, Gree, Midea, Sharp, Hitachi, Zephyr, Goodman , and many others—throughout Greater Montreal, including Laval, Longueuil, the North Shore, and the South Shore . Our certified technicians travel with all the necessary equipment to quickly diagnose and repair any type of residential HVAC system.
Our approach is based on three pillars:
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Effectiveness : accurate diagnosis from the first visit.
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Durability : repair with original or compatible parts.
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Transparency : honest recommendations, no unnecessary substitutions.
Conclusion
This Sanyo wall-mounted air conditioner repair in Brossard demonstrates our technicians' ability to combine experience and rigor to restore older units to full performance. At AirGreen, every service is carried out with the same attention to detail to restore comfort, reduce energy consumption, and extend the lifespan of your equipment.