A Critical Intervention in the Heart of Winter in Laval: AirGreen on the Front Lines
When temperatures drop well below zero and winter gusts sweep through the streets of Laval, the reliability of a heating system becomes absolutely vital. It was in these extreme conditions that we were called for an emergency repair on a Gree Lomo wall-mounted heat pump with 12,000 BTUs, which had stopped working at the height of a historic snowstorm that had paralyzed much of the North Shore. This story reveals our methodical approach, technical expertise, and the essential role we play in ensuring families' peace of mind during the harshest times of the year.
The Context: A Family Without Heat in the Middle of a Storm
Early Saturday morning in January, at 5:30 a.m., our team received a panicked call from a resident in Chomedey, Laval. Their wall-mounted heat pump, the main source of heating for their single-family home, had just stopped working—right as the thermometer hit -29°C, with a wind chill of -38°C. To make matters worse, the region was experiencing intermittent power outages, making response time absolutely critical.
Fast, Accurate On-Site Diagnosis
Less than two hours after the call, despite barely cleared roads, our service truck was on-site. Thanks to our experience with Gree Lomo models, we immediately suspected an outdoor compressor failure due to ice buildup and electrical issues caused by power surges. A quick diagnostic using our multimeter and specialized tools confirmed:
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A burned control board in the outdoor unit
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A fan 80% frozen, unable to spin
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Lost communication with the indoor thermostat
The Technical Challenges of a Repair in Extreme Conditions
Working on a wall-mounted heat pump in the dead of winter, in the middle of a storm, is never simple. Our technicians had to:
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Manually defrost the outdoor compartment using a portable hot air blower
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Temporarily isolate sensitive electrical components
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Perform a bypass of the faulty board to partially restore heat until the replacement part arrived
We also provided an emergency backup space heater to keep the indoor temperature at a safe level during the repair process.
Replacing the Parts and Restoring Full Operation
As soon as our suppliers reopened the following Monday, we picked up a new OEM control board for the Gree Lomo 12,000 BTU, specifically matched to the client’s unit. Within 24 hours, the installation was complete, and the heat pump was fully operational again. We also took the opportunity to install:
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A surge protector on the outdoor unit
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An intelligent anti-ice sensor, specially designed for North Shore climate conditions
Root Cause Analysis: Preventing Future Breakdowns
Following the intervention, we conducted a full assessment of the client’s HVAC system. We found that:
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The system had not been maintained in over three years
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The outdoor unit’s location encouraged snow and ice accumulation
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No early overload detection system was installed
We recommended a yearly maintenance plan, including:
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Complete coil cleaning
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Inspection of all electrical connections and sensors
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Evaluation of the automatic defrost cycle
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Adjustment of the condensation drainage to prevent ice buildup
The Client’s Testimonial: Peace of Mind Restored
The family warmly thanked us for our fast and effective response. Here’s an excerpt from their message:
“We called at dawn, and you were already on your way. Thanks to you, we were able to stay home with our kids and didn’t have to evacuate. Thank you to the whole AirGreen team.”
This kind of genuine testimonial illustrates the commitment we bring to every job—emergency or not—across Laval, Montreal, Longueuil, North Shore, and South Shore.
Key Takeaways From This Intervention
Practical Tips to Avoid Emergency Repairs:
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Have your wall-mounted heat pump serviced annually, especially before winter
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Ensure the outdoor unit is shielded from snow and wind
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Install surge protection systems
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Choose models built for Nordic climates, like the Gree Lomo, Gree Extreme, or Fujitsu KZAH lines
The AirGreen Advantage:
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24/7 emergency availability
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Technicians specially trained for Québec’s harsh winter conditions
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Certified and guaranteed replacement parts
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Full coverage across the region: Laval, Montreal, Longueuil, North Shore, South Shore
Why Every Minute Counts During a Winter Breakdown
In Québec, a heating system failure can quickly turn into a serious issue. That’s why we’ve invested in an emergency response logistics system that allows us to react fast—even in extreme weather. Thanks to our fleet of all-terrain service vehicles, stockpiles of commonly used parts, and local customer support, we can usually be on-site within 30 to 90 minutes, depending on your location.
AirGreen, Your Trusted HVAC Partner for Winter Emergencies
At AirGreen, we do more than just sell equipment. We provide a reliable presence, high-level technical expertise, and a real commitment to your family’s comfort and safety. Every wall-mounted heat pump repair, every emergency call, is a chance for us to prove that HVAC service can be human, local, and responsive.
Do you have a winter HVAC emergency? Don’t wait for the cold to settle into your home. Contact our team right away for rapid intervention in Laval, or anywhere on the North Shore and South Shore.