Cleaning of a SEARS central air conditioner in Sainte-Julie

A complete service to revive a dirty air conditioner

At AirGreen , we recently completed a full cleaning of a SEARS brand central air conditioner in Sainte-Julie , on Montreal's South Shore. The owner contacted us after noticing that the system was running louder and cooling less efficiently than before—typical signs of an outdoor condenser clogged with dirt and debris .

Initial diagnosis: a condenser saturated with dust

Upon our arrival, our technician quickly identified the source of the problem:

• The condenser fins were covered with a layer of dust and dirt.

• Dry leaves and small branches had accumulated around and inside the case.

• The fan also showed signs of fouling, which hampered airflow and increased the load on the motor.

This type of buildup is common for units located close to the ground, surrounded by gravel or vegetation. If left unaddressed, it can lead to excessive electricity consumption , premature compressor wear , and a significant drop in performance during hot weather.

Cleaning steps: precision and professional method

At AirGreen, we follow a rigorous procedure, in accordance with the manufacturer's recommendations, for all HVAC system cleaning:

1. Disconnect the power supply before any handling.

2. Removing the top grille and fan to access the inside of the condenser.

3. Vacuuming and gently brushing debris and deposits using a compressed air blower and an anti-static brush.

4. Application of a specialized biodegradable detergent for condenser fins , allowing grease and dust to dissolve without damaging the aluminum.

5. Low pressure rinsing to remove all residue without bending the fins.

6. Clean the fan , including the blades and the motor, then check that the fasteners are tight.

7. Inspection of electrical connections and circuit breaker to ensure system integrity.

All these steps were carried out with the utmost care, without using corrosive products or excessive pressure, in order to preserve the structure of the condenser and ensure optimal performance .

Results: restored efficiency and improved comfort

Once the cleaning was complete and the unit was restarted, the change was immediate:

• The noise level of the fan has decreased significantly .

• The flow of expelled hot air was more powerful , a sign of better heat exchange.

• The customer confirmed that the indoor temperature dropped more quickly and that the compressor ran for a shorter time to reach the setpoint.

Thanks to this maintenance, the heat pump has regained its full capacity, ensuring more stable energy consumption and a longer lifespan for the equipment.

The importance of regular maintenance

Many homeowners underestimate the impact of a dirty condenser on their comfort and energy bills. In fact, a clogged air conditioner can lose up to 30% of its efficiency .
At AirGreen, we recommend a complete cleaning in the spring , before the intense heat, to avoid any breakdowns in the middle of the summer season.

Our RBQ certified technicians operate throughout Montreal, Laval, Longueuil, on the North Shore and the South Shore , always respecting the manufacturer's procedures and using environmentally friendly products adapted to residential and commercial HVAC systems .

In conclusion

This intervention in Sainte-Julie perfectly demonstrates the effectiveness of preventive cleaning carried out by qualified professionals .
The SEARS air conditioner, once clogged with dust, now operates at full capacity, ensuring optimal comfort and improved energy efficiency .
At AirGreen, we believe that proper maintenance today is the best way to avoid costly repairs tomorrow.