Service Call of a Wall-Mounted Heat Pump in Montreal
Read about AirGreen's swift and expert repair of a Fujitsu heat pump in Montreal – a tale of efficiency, transparency, and customer satisfaction.

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.
A Tale of Expertise and Customer Delight
In the vibrant city of Montreal, a place known for its distinct seasons and the need for reliable heating and cooling solutions, AirGreen, your trusted HVAC specialist, recently embarked on a mission. This wasn't just any service call. It was a testament to our commitment to excellence, expertise, and, most importantly, to our customers' satisfaction.
The Challenge: A Fujitsu Heat Pump in Distress
Our latest adventure began when we received a call from a Montreal resident in a bit of a bind. Their wall-mounted Fujitsu heat pump, a critical lifeline during the fluctuating temperatures, had started showing signs of fatigue. Now, Fujitsu, as many of our readers might know, is synonymous with quality and efficiency in the world of heat pumps. However, even the mightiest machines require a caring touch from time to time.
AirGreen to the Rescue
The Diagnosis
Upon receiving the call, our team, armed with years of experience and a deep understanding of HVAC systems, was on the ground in no time. The diagnosis? A simple yet crucial part needed replacement. Simple for our skilled technicians, that is, but potentially complex and frustrating for any homeowner facing the brunt of a less-than-optimal heating or cooling system.
The AirGreen Advantage
Here's where our story takes a turn for the extraordinary. The homeowner had not initially installed the heat pump through us, yet they reached out, hoping for a solution only a company with our resources and expertise could provide. And we did not disappoint. Our access to Fujitsu's parts and our ability to honor warranties, regardless of the original installer, set us apart.
The Solution
Lucky for our homeowner, the heat pump was still under warranty. We contacted Fujitsu, secured the necessary part without cost, and swiftly proceeded to mend the heat pump back to its full glory. The only charge to our customer? Labor. No hidden fees, no exorbitant parts cost – just straightforward, honest service.
The Result: Beyond Satisfaction
Our client's reaction was nothing short of thrilled. Rapid dispatch, efficient repair, and transparent pricing – it was a trifecta of service excellence. This experience wasn't just a repair call; it was a reaffirmation of their trust in us, a choice we don't take lightly.
Why Choose AirGreen for Your HVAC Needs?
Our Expertise
With years of experience serving Montreal, Laval, Longueuil, and the surrounding areas, our team has seen and solved nearly every HVAC issue imaginable. From the simplest maintenance checks to the most complex installations, our expertise is your peace of mind.
Our Commitment to Quality
We don't just fix problems; we provide solutions that last. Using only the highest quality parts and equipment, like Fujitsu's reputable heat pumps, ensures that our repairs and installations stand the test of time.
Our Customer-First Approach
At AirGreen, you're not just a job number; you're part of our community. We pride ourselves on our rapid response, transparent pricing, and, most importantly, our ability to listen to and address your specific needs.
Final Thoughts
In the heart of Montreal, a Fujitsu wall-mounted heat pump found a new lease on life, thanks to the expertise and dedication of AirGreen. It's stories like these that not only highlight our technical skills but also our commitment to going above and beyond for our customers.
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.
Which type of equipment for your project?
Pick what looks like your need.
What people ask us about this kind of work
What should I have ready before calling?
Repair or replace?
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
Does AirGreen hold the required licences?
Is the estimate free?
No question matches. Write to us: we answer.
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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).
