A typical service call that demonstrates the importance of prompt and professional maintenance
At AirGreen , we receive numerous calls each summer regarding Midea wall-mounted air conditioners experiencing performance issues. One of our recent service calls took place in Montreal's Côte-des-Neiges neighborhood, where a customer contacted us after noticing that their indoor unit was no longer blowing cold air, despite a warning light being on.
On-site diagnosis: a faulty sensor and a clogged grid
Upon arriving on site, our technician immediately noticed an unusual noise coming from the wall unit. After checking the front panel and filters, we discovered a significant buildup of dust on the evaporator fins, which was significantly reducing airflow.
A thorough inspection of the system then revealed a faulty temperature sensor , causing the ambient temperature to read incorrectly and the compressor to shut down prematurely. This type of failure is common on some Midea series after several years of use without regular maintenance.
Steps of repair
Our technicians followed a rigorous protocol to restore the unit to perfect working order:
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Complete cleaning of the indoor coil and fan using a biodegradable product.
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Replacement of the temperature sensor with an original Midea part.
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Checking the electronic board to ensure that no power surges had damaged the circuits.
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30-minute performance test to confirm system stability and return to constant temperature.
Result: restored comfort and reduced consumption
After the repair, the wall-mounted air conditioner returned to its original performance. The customer immediately noticed a decrease in operating noise and better distribution of cold air in the main room. This type of repair, although minor, can have a significant impact on the system's durability and energy consumption .
The benefits of an AirGreen intervention
Using AirGreen means benefiting from:
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Certified technicians specializing in Midea, Fujitsu, Gree, Sharp and Goodman HVAC systems.
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Advanced diagnostic tools to quickly detect electronic faults.
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Guaranteed original parts , ensuring optimal compatibility and reliability.
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Fast service in Montreal, Laval, the North Shore and the South Shore.
Prevention: annual maintenance, your best protection
Our experts recommend annual preventative maintenance , including:
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Cleaning the indoor coil and outdoor condenser.
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Checking the pressure of R-32 refrigerant.
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Checking electrical connections and condensates.
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Testing the sensor and fan for proper operation.
This regular maintenance reduces the risk of costly breakdowns and keeps the system's energy performance at its peak.
A testimony of trust
The owner, satisfied with the service, told us that he now plans to add an AirGreen seasonal maintenance contract , to ensure the reliability of his Midea wall-mounted air conditioner for years to come.
At AirGreen , we know that every repair is an opportunity to give our customers the comfort and peace of mind they deserve. Whether you're in Montreal, Laval, the North Shore, or the South Shore , our team is always ready to respond efficiently and professionally.