An outdoor unit exposed to the elements regains its efficiency thanks to AirGreen maintenance
On the flat roofs of commercial buildings in Lachine , many HVAC units are subjected to extreme conditions: rain, wind, pollution, and industrial dust. At AirGreen , we recently performed a complete cleaning of a Samsung wall-mounted heat pump that showed significant signs of wear and dirt buildup, compromising its performance and lifespan.
Initial observation
Upon arrival, the Samsung heat pump had a noticeable layer of rust and mineral deposits on its top cover, as well as a front grille covered in dust and debris. These accumulations, common on outdoor units installed on flat roofs, gradually obstruct airflow and reduce heat exchange efficiency.
The customer had reported an abnormal noise and a drop in air conditioning performance , typical symptoms of a lack of regular maintenance.
AirGreen intervention steps
1. Securing and inspection
First, we disconnected the unit's power supply and checked the condition of the connections, the power cable, and the circuit breaker. We then removed the front grille to access the turbine and blades.
2. Mechanical dust removal
Using a compressed air blower and soft brushes, we carefully removed the dust and residue stuck between the heat exchanger fins. This step prevents damage to the aluminum fins while restoring the fan's optimal airflow.
3. Environmentally friendly chemical cleaning
We applied a biodegradable, pH-neutral degreaser , specially formulated for corrosion-resistant surfaces. This product effectively dissolves grease, dirt, and organic deposits without damaging the metal. After a few minutes, a low-pressure rinse removed the accumulated contaminants.
4. Corrosion treatment
The rusted areas on the upper casing were cleaned and treated with a rust inhibitor compatible with HVAC units. This treatment prevents the spread of corrosion and extends the life of the exterior coating.
5. Fan and compressor check
We inspected the fan motor and compressor to check for excessive vibration. No anomalies were detected, confirming that the reported noises were simply due to the grille being clogged and dust accumulating on the blades.
Results after cleaning
Once the cleaning was complete, we restarted the system and measured the operating pressure and airflow . The values were found to be in accordance with Samsung's manufacturer specifications.
The customer immediately noticed an improvement in comfort and a reduction in noise level . The heat pump, formerly noisy and inefficient, now operates smoothly, with restored energy efficiency.
Why is it important to maintain your heat pump regularly?
Outdoor units installed on roofs or balconies are constantly exposed to dust, pollutants, and weather variations. Without maintenance, they risk:
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Lose up to 30% of energy efficiency ;
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To suffer premature wear of the engine and compressor ;
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Accumulation of rust compromising the watertightness of the casing;
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And generate operating noises due to fouling.
A thorough cleaning once or twice a year prevents these problems, improves air quality and reduces energy costs.
The AirGreen approach: rigor and expertise
At AirGreen , each cleaning is carried out according to a rigorous protocol adapted to each brand, whether it is Samsung, Fujitsu, Mitsubishi, LG or Daikin .
Our technicians use safe, environmentally friendly products that comply with manufacturers' recommendations. In addition to cleaning, we perform preventative inspections to detect any anomalies before they become breakdowns.
Our services are available throughout Greater Montreal , including Lachine, Laval, Longueuil, the North Shore and the South Shore .
A heat pump that works like new, without replacing the equipment
Thanks to deep cleaning and targeted anti-corrosion treatment, this Samsung heat pump in Lachine has regained its full air conditioning and heating capacity, without needing premature replacement.
This proves that AirGreen maintenance is not limited to a simple wash: it is a sustainable investment in the performance and reliability of your HVAC system.