A service call in the middle of winter in Laval
At AirGreen , we often receive urgent calls when temperatures drop suddenly. This is exactly what happened during our recent intervention in Sainte-Dorothée, Laval , to repair a Midea central heat pump installed on the side wall of a brick residence. That day, the bitter cold and accumulated snow on the property made access to the outdoor unit difficult, but our technicians are perfectly equipped for these conditions.
Diagnosis: An electrical failure causing the system to shut down completely
The customer contacted us after noticing that his heat pump was no longer working at all , neither in heating nor in cooling. No indicator lights were coming on on the outdoor unit, a clear sign of an electrical fault.
Upon our arrival, we have:
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Checked the supply voltage at the circuit breaker and the external switch;
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Inspected electrical connections and wiring;
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Checked the main control board in the Midea unit.
Our tests revealed that an internal fuse on the circuit board had blown due to a momentary short circuit caused by moisture entering near a connector.
Repair: replacing the fuse and drying the case
Our technicians replaced the 5A protection fuse , cleaned the electrical compartment, and applied a dielectric protective coating to prevent future infiltration. We also checked the compressor resistance and the power module voltage to ensure no other components had been damaged.
Once the system was powered back up, the heat pump restarted without incident . We observed a gradual increase in temperature in the house, confirming that the compressor and outdoor fan were operating normally.
Recommended preventive maintenance
To avoid future interruptions in the middle of winter, we advised the customer:
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Have your Midea heat pump inspected twice a year (spring and fall);
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Maintain a clearance of at least 60 cm around the compressor , particularly in winter to avoid snow accumulation;
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Regularly check that there is no ice on the refrigeration pipes and around the condensation drain.
AirGreen expertise for winter comfort
Our winter interventions require rigor, speed, and precision. Thanks to our expertise in HVAC system repair in Laval , we not only restored the comfort of this residence, but also extended the life of a still-new heat pump.
The client was able to see that our local Sainte-Dorothée team works efficiently even in the most demanding conditions, thanks to our adapted tools and our know-how recognized throughout Montreal, the North Shore and the South Shore .
Why choose AirGreen for your Midea heat pump repairs?
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Certified technicians specializing in Midea, Fujitsu, Sharp, Gree and Daikin systems;
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Rapid intervention throughout Greater Montreal ;
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Accurate diagnosis and original replacement parts;
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Warranty on labor and replaced parts.
Final result: comfort restored and safety assured
After restarting the system, we performed a complete defrost cycle analysis , measured R-410A refrigerant pressures and confirmed optimal performance.
The customer, relieved to find a stable temperature in his home, decided to subscribe to our annual AirGreen maintenance program , which includes a complete inspection and a thorough cleaning of the heat pump.
At AirGreen, every service call is an opportunity to demonstrate our commitment to quality, transparency, and the lasting comfort of our customers. Regardless of the make, model, or season, we ensure the optimal performance of your HVAC systems in Laval, Montreal, and on both shores.