In the residential area of Charlemagne, on the North Shore of Montréal, our team recently responded to a service call for a Lennox wall-mounted heat pump that no longer seemed to provide the expected thermal comfort. This type of intervention is common, but every situation is unique, and at AirGreen, we always take the time to perform a complete and personalized diagnosis.
A simple complaint, but multiple possible causes
The client contacted us after noticing that the heat pump was no longer blowing warm air, even though the indicator lights were on and no error codes appeared. At first glance, the unit seemed to be in good condition. Installed on the wall in a living area, under a ceiling light, the Lennox heat pump was properly positioned and showed no outward signs of malfunction.
Our technicians promptly went to Charlemagne to carry out a thorough inspection of the HVAC system.
Inspection of the Lennox heat pump: precision and thoroughness
Initial checks
Upon arrival, our team began by:
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Checking the electrical supply and the dedicated breaker for the unit.
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Inspecting the wall-mounted remote and its infrared signal.
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Testing the airflow when the system was started.
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Verifying the cleanliness of the indoor unit’s filters.
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Examining the indoor fan and motor.
Diagnosing the problem
The indoor unit turned on as usual, but no airflow was coming out, even after several minutes. This symptom pointed us toward a fan motor issue, or a failure of the electronic board that controls the fan. Using our specialized diagnostic tools, we were able to confirm that:
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The control board of the indoor unit was operational.
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The fan motor was not receiving the required voltage to start.
We then tested the motor’s continuity and found a burned-out coil, caused by a recent power surge according to the client.
A fast solution thanks to our parts inventory
At AirGreen, we understand that even a single day without heating or cooling can be uncomfortable. Thanks to our mobile inventory of parts for wall-mounted heat pumps, we had a compatible replacement motor for the Lennox model right in our service vehicle.
Repair steps:
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Safe removal of the faulty fan motor.
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Cleaning of the indoor unit’s internal ducts.
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Installation of the new motor with precise calibration.
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Electrical connection checks.
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Restart and complete testing of the heating and cooling cycles.
Result: restored comfort and optimized performance
Once the motor was replaced, the Lennox heat pump immediately resumed optimal operation. The warm airflow was strong, even, and without any unusual noise. We made sure to explain to the client a few simple actions to help extend the life of their unit:
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Clean the air filters every month.
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Never block airflow with furniture or curtains.
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Schedule annual preventive maintenance with a certified professional.
AirGreen expertise: more than just an HVAC repair
This type of intervention is a perfect example of our approach: efficiency, transparency, and high-quality local service. By responding quickly in Charlemagne, we enabled a family to regain thermal comfort without having to wait several days for a special-ordered part or a later appointment.
We take pride in our expertise in repairing Lennox wall-mounted heat pumps, but also in our ability to intervene across all regions of Montréal, Laval, Longueuil, the North Shore, and the South Shore with the same level of precision.
Why choose AirGreen for your HVAC service call?
Here are a few points that make us stand out:
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Certified and experienced technicians for all Lennox, Gree, Fujitsu models, and more.
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Fast availability throughout Charlemagne and the North Shore.
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Fully equipped service vehicles with common replacement parts.
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Transparent pricing: no hidden fees, clear diagnostics.
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Attentive customer service: we support you even after the repair.
Post-repair recommendations for this Lennox heat pump
Practical advice
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Consider installing a surge protector to avoid future motor damage.
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Schedule a preventive inspection every year before winter to avoid breakdowns in the peak of the cold season.
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Follow the manufacturer’s recommendations for maintenance intervals.
Customer follow-up
Our Charlemagne team will make a follow-up call in one month to ensure everything is working properly. This type of proactive customer relationship is part of our commitment to delivering reliable and long-lasting HVAC service.
A successful intervention, a satisfied client
The client in Charlemagne expressed great satisfaction with the speed of our response, the clarity of the technical explanations, and the immediate return to comfort. A simple but effective repair, thanks to our experience in Lennox wall-mounted heat pump repairs.