A service call to give a vital appliance a new lease of life
At AirGreen , we know that a well-maintained wall-mounted air conditioner is the key to lasting comfort and healthy air in Montreal homes. Recently, our team visited an apartment in Montreal's Villeray–Saint-Michel–Parc-Extension neighborhood to perform a complete maintenance on a Midea wall-mounted air conditioner that was showing signs of wear after several seasons of use.
Diagnosis: declining efficiency and saturated filters
The customer contacted us after noticing a decrease in cooling power , accompanied by an unusual noise and a slightly dusty odor when turned on. Upon arrival, we carried out a complete inspection of the indoor unit.
Our technicians quickly identified the origin of the problem:
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Clogged air filters , obstructing the air passage.
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Dust accumulation on the evaporator.
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Partially blocked drain , which could cause a water leak.
These symptoms are typical of a lack of periodic maintenance—a common phenomenon, especially after a hot and humid summer like the one we just experienced in Montreal.
Step 1: Thoroughly clean the filters and evaporator
We started by removing the front panels of the wall-mounted unit. The filters were removed, cleaned with warm water, and air dried. Then, using a specialized HVAC coil cleaner , we removed the dust and grease deposits on the evaporator.
This step not only restores air circulation , but also improves the energy efficiency of the appliance, thus reducing power consumption.
Step 2: Check the drain and condensate tray
A poorly drained air conditioner can cause water damage and promote mold growth. So we performed a thorough flush of the drain hose , followed by a functional test of the condensate pan.
After cleaning, the drain flow was perfectly smooth, ensuring leak-free operation.
Step 3: Performance testing and calibration
Once the components were cleaned and dried, we turned the unit back on. Measurements showed that the airflow was restored to 100% , the blowing temperature was stable , and the noise level was in line with Midea standards .
We also checked the temperature sensor and the control board , to ensure precise regulation and rapid response to setpoint changes.
The importance of regular maintenance
This type of intervention, although seemingly simple, plays a crucial role in the lifespan of a wall-mounted air conditioner . Annual maintenance carried out by a professional allows you to:
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Maintain optimal performance summer after summer.
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Prevent costly breakdowns related to compressor overheating.
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Eliminate bacteria and allergens present in the filters.
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Reduce energy consumption by up to 20% .
At AirGreen, we recommend our clients schedule a professional cleaning before the warm season , especially in urban areas like Villeray, where ambient dust accelerates the clogging of wall systems.
Expertise and proximity: the AirGreen signature
Our Montreal-based team travels throughout the metropolitan area— Montreal, Laval, Longueuil, North Shore and South Shore —to provide fast, reliable and long-lasting HVAC maintenance, repair and installation services.
Every service call is handled with the same rigor: precise diagnosis, deep cleaning, electrical check and complete cycle control .
It is this personalized and technical approach that has made AirGreen a benchmark in residential HVAC maintenance in Greater Montreal for over a decade.
Result: comfort restored and customer satisfied
A few hours after our visit, the customer confirmed that his Midea air conditioner was working like new again : powerful airflow, uniform temperature and silence restored.
This type of intervention, although discreet, perfectly illustrates our mission: to guarantee the lasting comfort of every Montreal home through rigorous maintenance and proven skills.
Good to know: preventive maintenance, a profitable investment
By cleaning your wall-mounted air conditioner every year, you:
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Extend its average lifespan by 5 to 7 years .
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Reduce your electricity bills.
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Prevent unwanted odors, mold, and noise.
AirGreen remains at your service to ensure the proper functioning and maximum performance of all your Midea, Fujitsu, Gree, Sharp systems, or any other trusted brand installed in your home.