Repair of a Daikin Wall-Mounted Heat Pump in Longueuil: Quality Service
Quick intervention to repair a Daikin wall-mounted heat pump in Longueuil. Fan motor replacement and full maintenance ensure improved performance and restored comfort.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
Professional intervention to resolve heat pump performance issues
At AirGreen, we understand the importance of keeping your HVAC systems in top working condition, especially when extreme temperatures threaten the comfort of your home or business. That’s why we recently completed a service call to repair a Daikin wall-mounted heat pump in Longueuil. Discover how our team solved this issue quickly and effectively, providing a lasting solution.
The situation: a unit lacking performance
During our visit to Longueuil, our technicians were called to intervene on a Daikin wall-mounted heat pump showing signs of malfunction. The customer complained of poor performance in heating mode and a reduced cooling capacity. These symptoms can be caused by several factors, including a lack of maintenance or failure of certain internal components. We quickly identified the root cause of the problem.
The diagnosis: fan motor failure
After a thorough inspection, our technicians determined that the fan motor in the indoor unit was defective. This motor is essential for ensuring optimal air circulation, especially during periods of high demand, such as in winter or summer. Without a properly functioning motor, the unit struggles to distribute cold or hot air evenly, leading to temperature fluctuations and higher energy consumption.
The solution: fan motor replacement and full maintenance
Once the problem was identified, we proposed a quick and effective solution. First, we proceeded with the replacement of the faulty fan motor with the appropriate replacement part. Then, we conducted a complete maintenance service for the unit, which included a thorough cleaning of the filters and coils, as well as a check of the refrigerant levels. This step is crucial to ensure that the heat pump runs optimally and without interruption for a long time.
Results: comfort restored and performance improved
After completing all necessary repairs, the unit regained its full heating and cooling capacity. The customer immediately noticed an improvement in the temperature within their space and a significant reduction in energy consumption. They expressed satisfaction with the speed of our intervention and the efficiency of our solutions. This repair not only restored the home’s comfort but also allowed the customer to achieve long-term energy savings.
Why choose AirGreen for your HVAC repairs?
At AirGreen, we repair wall-mounted heat pumps from most brands, including Daikin, Fujitsu, Gree, and many others. Our qualified and experienced technicians ensure that every service call is a success, thanks to their expertise and impeccable customer service. Our interventions are fast, effective, and meet the highest quality standards.
Customers from Longueuil, Montreal, Laval, and the North Shore and South Shore trust us for our know-how, our ability to resolve complex issues, and our attention to detail. We also offer advice on preventive maintenance to prolong the life of your equipment and avoid potential future problems.
HVAC repair service in Longueuil: contact us today!
If you are experiencing issues with your heat pump or any other HVAC equipment, don’t hesitate to call on our professional team. At AirGreen, we are committed to providing high-quality HVAC repairs and ensuring your comfort all year round.
How it goes, from the first call to the end
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
The symptoms, since when, the model (on the unit's label) and the error code if there is one.
We look for the cause, not just the symptom: readings, components, installation.
Repair, part to order or replacement, depending on the failure. We explain what we found.
The repair is done and parts replaced as needed.
The unit is restarted and checked in its operating modes.
What caused the failure and what can keep it from coming back.
- Your callThe symptoms, since when, the model (on the unit's label) and the error code if there is one.
- On-site diagnosisWe look for the cause, not just the symptom: readings, components, installation.
- The optionsRepair, part to order or replacement, depending on the failure. We explain what we found.
- The workThe repair is done and parts replaced as needed.
- TestsThe unit is restarted and checked in its operating modes.
- AdviceWhat caused the failure and what can keep it from coming back.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
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What people ask us about this kind of work
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Repair or replace?
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).