When preventative maintenance breathes new life into an aging appliance
At AirGreen , we know that a neglected wall-mounted air conditioner can quickly lose efficiency and compromise indoor air quality. Recently, our team traveled to Sainte-Julie , on Montreal's South Shore , to perform a complete cleaning of a wall-mounted unit whose owner was complaining of decreased performance and a persistent odor upon startup.
Initial diagnosis: a dirty and worn-out wall-mounted air conditioner
The wall-mounted air conditioner, installed for several years in the client's living room, showed obvious signs of wear and tear:
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Filters saturated with dust and pet hair , preventing proper airflow;
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Evaporator clogged with a thin layer of grease which promoted the formation of mold;
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Partially blocked drain , causing slight water seepage along the wall;
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And an irregular blowing noise , a sign of a fan unbalanced by the accumulation of dirt.
The client told us that, despite regular superficial cleaning of the filters, the system's performance had declined over the seasons, making the room hotter in summer and less comfortable.
The AirGreen intervention: a complete and methodical cleaning
Our technician started by unplugging the system and protecting the surrounding area (curtains, wall and furniture) using a professional washing cover.
Afterwards :
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Removal of the front hood and complete removal of the filters;
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Fine vacuuming of visible dust on the evaporator and condensate tray;
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High-pressure cleaning with warm water to dislodge the grime embedded in the fins;
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Application of a biodegradable cleaning product designed for HVAC equipment;
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Antibacterial disinfection of the fan and internal casing;
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Drain check : clean the pipe with a mild vinegar solution to dissolve limescale residue;
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Finally, complete reassembly and performance testing.
Each step was carried out according to the manufacturer's standards , ensuring the safety of the system and the durability of the electronic components.
The result: a refreshed device and restored comfort
As soon as it was restarted, the customer immediately noticed the difference:
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More powerful airflow , without extraneous noise;
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Fresher, healthier air , without odor;
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Controlled condensation , without visible leakage;
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And above all, reduced energy consumption , thanks to a return to optimal heat exchange.
Our final tests confirmed a 25% improvement in airflow , concrete proof that deep cleaning a wall-mounted air conditioner is not just an aesthetic gesture, but a real measure of energy efficiency .
The importance of regular maintenance
At AirGreen, we recommend a complete cleaning of HVAC equipment at least once a year, particularly before the warm season.
This type of intervention allows us to:
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Preventing condensate leaks ;
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Prevent the proliferation of bacteria and mold ;
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Maintain optimal air quality ;
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Extend the lifespan of the compressor and fan ;
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And reduce electricity costs .
A well-maintained wall-mounted air conditioner, even an older one, can continue to offer remarkable performance while protecting the health of the occupants.
AirGreen's expertise on the South Shore and beyond
Whether you are in Sainte-Julie , Longueuil , Boucherville , Laval or Montreal , our specialized technicians will travel to ensure the cleaning, washing and disinfection of all types of HVAC systems :
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Wall-mounted and central heat pumps ;
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Single or MultiZone wall-mounted air conditioners ;
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Air exchangers and ventilation ducts .
Each intervention is carried out with professional tools and environmentally friendly products, because for us, performance should never come at the expense of indoor air quality .