Essential maintenance for performance and durability
At AirGreen , we recently performed a complete cleaning of a Fujitsu wall-mounted heat pump in a residential area of Saint-Laurent, Montreal . This type of service, while common, remains essential to maintain energy efficiency, indoor air quality, and the system's longevity.
Before our intervention: clear signs of fouling
The customer contacted us after noticing that their heat pump was producing less cool air than usual and that a slight, unusual noise was coming from the outdoor unit. These symptoms, typical of progressive fouling , can result from the accumulation of dust and debris on the condenser fins, or even from a partially blocked drain.
A visual inspection of the Fujitsu unit revealed:
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An accumulation of dust and dirt on the condenser fins.
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Traces of moisture on the drain tray, a sign of a drain that needs monitoring.
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A saturated internal filter reduces airflow and forces the compressor to work harder.
The AirGreen cleaning process: rigor and precision
Our team applied the complete AirGreen process for cleaning wall-mounted heat pumps, respecting the recommendations of the manufacturer Fujitsu and the applicable HVAC standards.
Step 1 — Preparing and protecting the work environment
Before any handling, we protected the metal facade of the building as well as the vinyl cladding at the bottom of the wall to prevent any splashing of water or cleaning product.
Step 2 — Cleaning the indoor unit
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Remove the filters and clean them with warm water and a mild detergent.
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Suction of the fins and light antibacterial treatment on the evaporator.
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Check the drain and rinse thoroughly to prevent any water backflow.
Step 3 — Deep cleaning of the Fujitsu outdoor unit
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Cleaning the condenser fins using a low-pressure water jet.
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Application of a biodegradable cleaning product designed to dissolve grease and fine dust without damaging the components.
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Dusting of the fan and visual inspection of electrical connections.
This approach ensures not only effective cleaning, but also the preservation of the mechanical and electrical integrity of the system .
Results: restored performance and renewed efficiency
After our intervention, the Fujitsu heat pump immediately regained its optimal efficiency:
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Fresher, cleaner air , even circulation throughout the room.
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Reduction of fan noise .
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Improved energy efficiency , resulting in a decrease in electricity consumption.
The client noticed a significant difference in comfort within the first few hours following the cleaning.
Why regular cleaning is essential
Regular maintenance of your HVAC system, performed by qualified professionals like AirGreen, allows you to:
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Avoid compressor overload and extend the life of the heat pump.
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Prevent mold and allergens in indoor air.
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Reduce energy costs while maintaining optimal efficiency.
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Preserve the manufacturer's warranty by respecting the recommended maintenance intervals.
AirGreen's expertise at your service throughout Greater Montreal
For over a decade, AirGreen has been recognized for its expertise in cleaning, maintaining, and repairing HVAC systems in Montreal, Laval, Longueuil, and on the North and South Shores . Our technicians use specialized equipment, environmentally friendly products, and proven methods to guarantee the cleanliness and efficiency of every installation.
We recommend a complete heat pump cleaning once or twice a year , ideally in the spring or fall, to ensure optimal operation throughout the year.