Cleaning a wall-mounted heat pump in Outremont

Preventive cleaning to restore the appliance's performance and efficiency

At AirGreen , every service call is an opportunity to demonstrate how professional cleaning can transform the performance of an HVAC system. On this particular day, we were called to Outremont , to a condo-style apartment, where a wall-mounted heat pump was showing clear signs of fouling and reduced efficiency.

Before our intervention: subtle but revealing signs

The customer had noticed:

• A decrease in the flow of fresh air.

• A slight, irregular noise coming from the indoor unit.

• A dusty smell was present as soon as it was switched on.

• A feeling of drier and less comfortable air in the main room.

These symptoms, while common, are often the result of a lack of annual maintenance. A quick inspection confirmed the presence of compacted dust on the filters and greasy residue on the evaporator , enough to significantly reduce the system's performance.

Technical inspection: a device that needs to breathe

The unit, installed above a closet door, suffered from limited airflow and deep dust accumulation . Our technicians therefore began a complete inspection to assess:

• The condition of the air filters (visibly saturated).

• The turbo fan is slightly sticky due to deposits.

• The evaporator fins are clogged and tarnished.

• The condensation drain , half blocked, risks causing internal leaks.

Steps for a complete AirGreen cleaning

1. Securing and preparing the construction site

We protected the surrounding wall and doors with a waterproof wash bag , designed to collect water and debris during cleaning. The appliance was then switched off for safe dismantling.

2. Disassembly and cleaning of the filters

The filters were removed, washed in hot water with an eco-friendly detergent , and rinsed under high pressure. After thorough drying, they regained their original color and transparency.

3. Deep cleaning of the evaporator

Using a gentle jet pressure washer , our technicians applied a biodegradable cleaning product to the evaporator to remove dirt, bacteria, and grease residue. The evaporator was then rinsed with warm water under controlled pressure to avoid damaging the aluminum fins.

4. Condensation drain cleaning

The drain was cleared using a hand pump and flushed until the water ran clear. This step is crucial to prevent water overflows and mold growth in the crankcase.

5. Cleaning the fan and deflectors

We carefully cleaned the turbine (often neglected) using an antistatic brush and a neutral disinfectant. The deflectors were also washed and treated with an antibacterial agent.

6. Reassembly and complete testing

Once all the parts were cleaned and dried, we reassembled the unit. After restarting it, the heat pump blew clear, odorless air and regained its original power . The abnormal noise had disappeared.

Immediate results

At the end of the procedure:

• The indoor air was cleaner and softer.

• The ambient temperature stabilized more quickly.

• Energy efficiency was improved by approximately 20%.

• The customer noticed a significant reduction in operating noise.

The advantages of AirGreen cleaning

An annual professional review allows you to:

• Maintain system performance throughout the year.

• Reduce electricity consumption and extend the life of the device.

• Prevent bad odors , mold and bacterial contamination.

• Avoid costly breakdowns due to overheating or drain blockage.

At AirGreen, we prioritize environmentally friendly products and safe methods for maintenance without compromising on the health and durability of the equipment.

The importance of regular maintenance

Dust, pollen, and moisture quickly combine to form an invisible film on the internal components. This layer acts as a thermal barrier, forcing the heat pump to work harder.
A thorough cleaning once a year is sufficient to maintain:

• Optimal compressor and fan performance .

• Indoor air quality is essential for sensitive occupants.

• The quiet comfort of a well-maintained appliance.

Conclusion: a breath of fresh air for the house

Thanks to this service in Outremont, the client's heat pump has regained smooth and quiet operation , providing immediate and lasting comfort. This type of preventative maintenance perfectly illustrates AirGreen's philosophy: combining performance, health, and respect for the environment , one cleaning at a time.