Maintenance is necessary to restore the system's efficiency and cleanliness.
At AirGreen , we were recently called in to perform a complete cleaning of a central heat pump installed on the back of a single-family home in Sainte-Thérèse , on Montreal's North Shore. The homeowner had contacted us after noticing a significant decrease in the system's efficiency, as well as a visible accumulation of dust and dirt around the outdoor unit.
Initial diagnosis: a heat pump clogged by the seasons
Upon our arrival, we observed several classic signs of a lack of regular maintenance :
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The outdoor unit was covered with a thin layer of dust and plant debris , the result of prolonged exposure to the elements.
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The wall-mounted cable grommet showed signs of oxidation and deteriorated insulating foam , raising concerns about moisture infiltration.
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The condenser fins were partially obstructed, limiting airflow and reducing energy efficiency.
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The refrigeration pipes and condensation drain showed deposits, suggesting an urgent need for deep cleaning.
These symptoms typically result in increased power consumption , less efficient cooling or heating , and, in the long term, an increased risk of compressor failure .
AirGreen intervention: a complete and professional method
We carried out a complete cleaning of the exterior system , following the professional protocols that we systematically apply to all our HVAC interventions.
Step 1 – Protection and preparation
First and foremost, we protected the surrounding surfaces and disconnected the heat pump's power supply to ensure a safe intervention.
We then partially dismantled the access panels to check the condition of the condenser, fan and drain pan .
Step 2 – Cleaning the condenser and fins
Using a low-pressure water jet and a biodegradable cleaning product , we removed the dirt, dust and micro-debris lodged between the condenser fins.
This step is crucial to restore airflow and optimize heat exchange .
Step 3 – Checking the drain and refrigeration connections
The condensation drain , often clogged by organic deposits, was carefully unclogged using a pressure-controlled suction tool .
We also inspected the fittings and insulation of the refrigeration lines , replacing deteriorated foam to prevent performance losses.
Step 4 – Cleaning and recommissioning
Once the cleaning was complete, we rinsed the entire system, then disinfected the exposed surfaces with an environmentally friendly antibacterial treatment .
Finally, the heat pump was put back into service and tested : the fan rotated freely, the airflow was optimal, and the blown temperature perfectly matched the manufacturer's specifications.
Results obtained
The owner immediately noticed an improvement in indoor comfort and a reduction in noise from the outdoor unit.
Thanks to this cleaning, the heat pump now operates at full efficiency , reducing energy consumption and extending the life of the equipment.
Why entrust the cleaning of your heat pump to AirGreen?
At AirGreen, we combine technical expertise , specialized tools and environmentally friendly products to ensure impeccable cleaning of every HVAC system.
Our approach aims to:
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Optimize the energy performance of your heat pump.
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Prevent costly breakdowns through preventative maintenance.
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Improve the indoor air quality and comfort of your home.
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Protect your long-term investment .
Professional maintenance carried out once a year can prevent up to 30% loss of efficiency and double the average lifespan of a well-maintained device.
AirGreen – HVAC cleaning, maintenance and performance experts in Sainte-Thérèse, Laval, Montreal, and throughout the North Shore.