A high-performance heat pump regains its efficiency thanks to AirGreen cleaning
At AirGreen , we know that a well-maintained Fujitsu wall-mounted heat pump can provide optimal comfort and exceptional energy efficiency for many years. With this in mind, we recently performed a complete cleaning of a Fujitsu Halcyon DC Inverter system in Sainte-Anne-de-Bellevue , on the West Island of Montreal.
Initial state: signs of fouling and loss of performance
The customer contacted us after noticing a significant decrease in airflow and reduced air conditioning performance . Externally, the unit showed signs of dust and debris buildup on the protective grille and condenser fins. Hot air was escaping with difficulty, forcing the compressor to work harder—a classic symptom of a lack of regular maintenance .
The inspection revealed:
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An exterior grille clogged with dust and plant debris.
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Slightly deformed and dirty heat exchanger fins .
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A flow of stagnant condensed water at the base of the metal support.
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Noises from the fan straining out , a sign of an imbalance caused by accumulated dirt.
Our professional cleaning process
To bring this heat pump back to life, our AirGreen team followed a structured and rigorous cleaning process , in accordance with the manufacturer Fujitsu 's guidelines.
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Power outage and complete visual inspection :
Before any intervention, we secured the system and assessed the overall condition of the outdoor and indoor modules. -
Condenser cleaning :
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Careful removal of the front grille to access the fins.
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Application of a biodegradable cleaning product designed for aluminum surfaces.
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Rinsing with low water pressure , avoiding any risk of deformation.
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Delicate straightening of the fins using a specialized fin comb .
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Fan and chassis treatment :
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Thorough cleaning of the fan blades to remove deposits.
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Application of an antibacterial and antifungal treatment to prevent the formation of mold.
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Wipe and dry the exterior chassis with a microfiber cloth.
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Drainage check :
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Unblocking the condensation drain , often a source of stagnant water and bad odors.
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Flow test with clean water to confirm proper operation.
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Restart and performance checks :
After cleaning, the gas pressure and airflow were tested using a digital pressure gauge and an anemometer . The results confirmed a return to original performance , with an improved airflow of nearly 30%.
Final result: efficiency, silence and longevity
The customer immediately noticed an improvement in interior comfort , a reduction in operating noise , and faster cooling of the rooms.
In addition to optimizing performance, this preventative cleaning helps to:
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Extend the compressor's lifespan .
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Reduce electricity consumption .
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Prevent costly breakdowns due to overheating.
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Maintain better air quality for occupants.
The importance of an annual maintenance check
We recommend annual professional cleaning of Fujitsu wall-mounted heat pumps, especially before the warmer months. Even though these systems are known for their reliability, dust, pollen, and urban pollution naturally accumulate on the heat exchange surfaces.
At AirGreen, our qualified technicians operate throughout Montreal, Laval, Longueuil, on the North Shore and the South Shore , to offer safe, efficient and environmentally friendly HVAC cleaning services.
AirGreen Air Conditioning & Heating — Experts in the maintenance, cleaning and optimization of residential and commercial HVAC systems for over 10 years.