Preventive maintenance before the return of warmer weather
In Brossard, a client contacted us for a complete cleaning of their York brand central heat pump . Installed for several years on the side of the house, the outdoor unit was showing clear signs of clogging: dust accumulated between the fins , plant debris stuck at the base , and reduced ventilation due to its proximity to the wall. With the snow melting and the first warm spells, the client wanted to prepare their system for the summer season—a wise decision to avoid efficiency losses and compressor overload.
Heat pump condition diagnosis
Upon our arrival, we conducted a thorough visual inspection :
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The condenser fins were partially obstructed by deposits of dust and dead leaves.
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The upper fan grille had a thin layer of surface rust.
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The concrete base had accumulated dirt and moisture, creating an environment conducive to corrosion.
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Finally, the drain pipe appeared to be slightly obstructed, preventing the complete drainage of condensation.
This type of fouling, often exacerbated after winter, can reduce heat exchange capacity by more than 25%, forcing the compressor to run longer and increasing electricity consumption.
Our professional cleaning method
1. Securing and powering off
As always, we shut off the power at the outside circuit breaker before starting work. This step is crucial to ensure the safety of our technicians and protect the heat pump's electronic components.
2. Clearing the area and removing debris
Using an industrial vacuum cleaner and a soft-bristled brush , we removed the debris trapped between the condenser fins. We also cleared away the leaves and dirt that had accumulated at the base of the unit. This promotes better airflow and reduces the risk of overheating.
3. Application of an eco-friendly cleaner
We then sprayed a biodegradable cleaning product specifically formulated for HVAC systems , designed to dissolve grease and dust without damaging the aluminum. The product was left to work for a few minutes before a gentle , low-pressure rinse with warm water . This method allows for a thorough and safe cleaning without bending the fins.
4. Fan and drain check
The upper fan was disassembled for individual blade cleaning , ensuring perfect mechanical balance. The condensation drain was purged with compressed air to remove any blockages or mineral deposits.
5. Drying, final inspection and return to service
After complete drying, we reconnected the device to measure the refrigerant pressure and airflow . All parameters were stable, confirming restored performance .
Results: restored efficiency and comfort
The customer immediately noticed a decrease in operating noise and a reduction in the cycle time of their heat pump. The air expelled inside quickly reached the desired temperature, a sign that the system was breathing freely again.
At AirGreen, we remind you that this type of preventative cleaning:
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Extends the life of the compressor and fan.
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Reduces energy consumption.
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Improves indoor air quality.
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Prevents costly breakdowns before the heatwave.
Recognized expertise in HVAC maintenance in Greater Montreal
Our team of HVAC cleaning experts serves Brossard, Montreal, Laval, Longueuil, as well as the entire North and South Shores . Every intervention is carried out with rigor, precision and respect for the manufacturer's recommendations , whether it be York, Fujitsu, Midea, or any other equipment.
With regular professional maintenance, you ensure optimal performance of your HVAC system throughout the year — and constant, energy-efficient comfort for your home.