A deep cleaning to revive a dirty appliance
At AirGreen , we were recently called in for a complete cleaning of a wall-mounted heat pump in a residence in Sainte-Thérèse , on Montreal's North Shore. The client had contacted us after noticing a significant drop in performance from their unit: the air blown was no longer as cold as before, and a slight unpleasant odor was noticeable every time it was turned on.
At first glance, the diagnosis was clear: the indoor unit showed traces of dust and mold on the evaporator fins, the air filters were saturated with dirt , and the blower turbine had accumulated a thick layer of grease and stuck-on dust .
Inspection and safe dismantling
Before any work began, our technician disconnected the power supply and installed a wall protector to prevent any splashing. The unit's front cover was then removed, revealing widespread fouling due to a lack of maintenance over several seasons.
We carefully disassembled the filters, air deflector, and turbine , allowing complete access to the evaporator and drain pan. The latter was beginning to show signs of blockage , which explained the musty odor reported by the customer.
Cleaning methods used
To restore the system's efficiency, we performed a complete controlled high-pressure wash , using an environmentally friendly and antibacterial cleaning solution specifically designed for residential HVAC systems.
The main steps:
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Clean the air filters with a mild degreaser, followed by rinsing with clean water.
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Complete disinfection of the evaporator , eliminating traces of mold and microorganisms.
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Cleaning the condensation tray and drain to ensure proper water drainage.
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The turbine is washed with a rotating brush and a controlled pressure jet, restoring the part to its original appearance.
All the work was carried out without complete dismantling of the unit from the wall, thanks to our specialized AirGreen equipment , designed for this type of quick and efficient maintenance.
Final result: restored comfort, efficiency, and clean air
Once the cleaning was complete, the difference was immediately visible and measurable . The evaporator, previously blackened with dirt, was shining again. The airflow was once again strong and consistent, and the room temperature was reached much more quickly.
The customer was pleasantly surprised by the complete disappearance of the odor and the machine's restored silence . This intervention resulted in:
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An improvement in indoor air quality .
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A reduction in energy consumption .
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An increase in the lifespan of the heat pump .
The importance of regular maintenance
A professional cleaning like this, carried out at least once a year , prevents:
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The accumulation of dust and mold.
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Energy efficiency losses.
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Premature compressor or fan failures.
At AirGreen , we offer personalized preventative maintenance programs for residences in Montreal, Laval, Longueuil, the North Shore and the South Shore , guaranteeing optimal comfort throughout the year.
Why choose AirGreen
Our team is distinguished by:
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Certified and experienced HVAC maintenance technicians .
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The use of environmentally friendly products .
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Courteous, fast and thorough service .
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Adherence to manufacturers' recommendations .
Thanks to our expertise, each device regains its original performance, while ensuring healthier and more pleasant indoor air.
AirGreen — Your trusted HVAC partner in Sainte-Thérèse and throughout Greater Montreal.