Essential maintenance for performance and safety
At AirGreen , we know that proper HVAC maintenance isn't a luxury—it's a necessity. Recently, our team traveled to Outremont , to an apartment building, to perform a complete cleaning of a GREE wall-mounted heat pump installed in a narrow window opening. This type of configuration, often chosen for space reasons, presents several maintenance challenges, including restricted airflow and the rapid accumulation of dust and grease on the condenser fins .
Initial diagnosis: a unit choked by dirt
During our inspection, we observed:
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Ventilation grilles clogged with dust and urban debris.
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A saturated air filter reduces cooling capacity.
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Dirty condenser fins , causing compressor overheating.
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Ventilation is reduced by the presence of an external metal grille.
These conditions, if left unmaintained, can lead to a loss of energy efficiency of more than 30% and, in the long term, to premature wear of the compressor .
Intervention: complete and safe cleaning
Our certified technician undertook a methodical and safe cleaning , adapted to this partially recessed installation:
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Power outage and perimeter protection.
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Partial dismantling of the casing to access the condenser.
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Fine dust extraction using specialized low-flow equipment, avoiding any damage to the fins.
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Application of a biodegradable cleaner formulated for GREE heat exchangers, without corrosive residues.
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Low-pressure rinsing to thoroughly clean the fins.
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Cleaning the fan and the condensation drain.
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Antibacterial disinfection of internal surfaces with a fragrance-free product, safe for occupants.
Results: a heat pump that looks like new
After the interview:
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The airflow has returned to optimal levels .
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The blowing temperature has dropped by 4°C , a sign of restored efficiency.
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The noise level has decreased , as dust often has an unbalancing effect on the fan.
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The client immediately noticed improved air quality and a fresher smell in the accommodation.
We also provided the owner with a comprehensive maintenance report , including before/after photos, and recommendations for semi-annual maintenance , which is particularly important for units exposed to urban pollution.
The importance of regular cleaning
A dirty heat pump works harder to reach the same temperature, consuming more electricity and wearing out faster. At AirGreen , we recommend a complete cleaning twice a year .
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In spring , before the hot season, to prepare for air conditioning mode.
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In the autumn , before heating, to eliminate the dust accumulated during the summer.
Regular maintenance allows for:
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A reduction in energy costs .
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Extended device lifespan .
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Better indoor air quality , essential in urban environments.
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Preventing costly breakdowns due to overheating or corrosion.
Why choose AirGreen for HVAC cleaning
We combine:
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Technicians trained directly by manufacturers such as GREE, Fujitsu and Midea.
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Certified ecological and non-toxic products .
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Local expertise covering Montreal, Laval, the North Shore and the South Shore.
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A transparent and preventative approach: each visit includes maintenance advice tailored to your installation.
Each intervention is carried out according to the manufacturer's safety and performance standards , ensuring optimal operation for our customers, season after season.
In conclusion
This GREE wall-mounted heat pump cleaning in Outremont perfectly illustrates the difference professional maintenance can make. At AirGreen, we don't just clean: we revitalize your HVAC systems to provide you with comfort, efficiency, and peace of mind all year round.