A meticulous intervention on a clogged rooftop heat pump
At AirGreen , we were recently called upon to perform a complete cleaning of a Hatem outdoor heat pump installed on a rooftop in Lachine , in southwest Montreal. The client, a condo owner, contacted us after noticing a loss of system efficiency and a significant accumulation of dust and debris on the outdoor unit.
Initial diagnosis: a heat pump choked by dirt
Upon arriving on the roof, our technician noticed a thick layer of gray dust covering the ventilation grille and condenser fins. This type of buildup, typical of units placed on flat roofs exposed to wind, prevents the heat pump from properly dissipating heat, which increases energy consumption and reduces the compressor's lifespan .
We also noticed signs of deterioration around the supports and an accumulation of dirt inside the case , indicating infrequent maintenance.
Cleaning steps: thoroughness and adherence to manufacturer's standards
To restore the heat pump to its full efficiency, our team carried out a complete cleaning in several stages :
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Power outage to ensure safe intervention.
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Remove the top cover and side grilles to directly access the condenser and fan.
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Gentle suction of dust and debris using a compressed air device and an anti-static brush.
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Application of a biodegradable condenser cleaner , designed to dissolve grease deposits without damaging the aluminum fins.
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Rinse with low pressure to remove any residue.
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Cleaning the fan and motor , often neglected but essential for good air circulation.
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Checking condensate drainage and pipe insulation .
Each step was carried out in accordance with the recommendations of the manufacturer Hatem , guaranteeing safe and durable maintenance.
Result: restored efficiency and cleaner air
After complete drying and reconnection to the power supply, we checked the operating pressures and observed an immediate drop in compressor temperature , indicating optimized heat exchange . The customer noticed the very next day that the heat pump was operating more quietly and cooling faster.
In addition to improving performance, this cleaning helped prevent corrosion and ensure increased longevity of the system, while also contributing to better indoor air quality inside the condo.
Regular maintenance: a guarantee of long-term performance
At AirGreen, we recommend a complete professional cleaning of your heat pump at least once a year , ideally in the spring or fall. This helps prevent unexpected breakdowns , reduces energy consumption , and maintains consistent comfort throughout the year.
Our RBQ certified technicians exclusively use ecological and safe products for heating, ventilation and air conditioning (HVAC) systems, suitable for all brands present in Montreal, Laval, Longueuil, on the North Shore and the South Shore.
In conclusion
This intervention in Lachine perfectly illustrates the importance of rigorous and preventative cleaning of outdoor heat pumps , especially when they are exposed to weather and dust from flat roofs.
Thanks to our methodical approach and local expertise, AirGreen helps residential and commercial clients every day to extend the life of their HVAC equipment and preserve their comfort all year round .