Service Call of a Wall-Mounted Heat Pump in Montreal
When a Montreal homeowner's heat pump failed, AirGreen's swift action and expertise turned a chilly situation warm, showcasing unmatched HVAC service.
Take a tour of the installation
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
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 Reliability and Expertise: AirGreen's Latest Heat Pump Rescue
The Heart of the Matter: Understanding the Importance of a Well-Functioning Heat Pump
In the bustling city of Montreal, the wall-mounted heat pump stands as an unsung hero in many households, especially during the harsh winters and unpredictable weather changes. A Lennox heat pump, known for its durability and efficiency, is a popular choice among residents seeking comfort and reliability. However, like all sophisticated machinery, it sometimes encounters hiccups that require professional attention.
The Challenge: When Technology Demands a Helping Hand
Seven years ago, AirGreen, a leading HVAC company in Montreal, installed a Lennox heat pump at a client's residence. This equipment had served the homeowner flawlessly, becoming an essential part of their daily comfort. Yet, one afternoon, the unexpected happened – the heat pump refused to start. Attempting the tried-and-true method of a power reset did not resolve the issue, leaving the homeowner in a predicament as the cold weather loomed.
AirGreen to the Rescue: A Commitment to Immediate Service
Understanding the urgency of the situation, the homeowner reached out to AirGreen. Our response was swift and decisive. Realizing the importance of the heat pump for heating in winter, we dispatched our next available technician on the same day, even as darkness enveloped the city. This prompt action underscores our commitment to not just installing HVAC systems but ensuring they continue to provide comfort and warmth to our customers, come what may.
The Solution: Expertise and Dedication at Work
Our technician, armed with expertise and a comprehensive toolkit, arrived at the scene, ready to tackle the medium-difficulty challenge. The issue was more than a simple electronic hiccup; it required a thorough examination and a nuanced understanding of Lennox heat pumps. After a meticulous assessment, our technician managed to revive the heat pump, bringing warmth back to the home and relief to the homeowner.
Beyond Repair: The AirGreen Promise of Excellence
This service call was not just about repairing a malfunctioning heat pump; it was a testament to AirGreen's unwavering dedication to customer satisfaction and after-sales service. Our philosophy extends beyond the sale; we believe in fostering relationships through reliability, promptness, and expertise. The homeowner's joy and relief served as a vivid reminder of why we do what we do.
Why Choose AirGreen for Your HVAC Needs
- Rapid Response Times: Whether it's a sunny day or a snow-filled evening, our team is ready to assist you at a moment's notice.
- Expert Technicians: Our professionals are not just skilled; they're passionate about providing the best HVAC solutions.
- Unmatched After-Sales Service: We stand by our installations, ensuring that every AirGreen product continues to meet your needs, day in and day out.
Looking Ahead: Warmth, Comfort, and Peace of Mind
As we move forward, stories like these not only reinforce the quality of our services but also remind us of the impact we have on the lives of our customers. A functioning heat pump is more than a machine; it's a source of comfort, a beacon of warmth, and a testament to the trust placed in us by those we serve.
In Montreal, Laval, Longueuil, North Shore, and South Shore, AirGreen remains your trusted partner for all HVAC needs, from installation to repair and everything in between. Our dedication to excellence, rapid response, and unparalleled customer service ensures that when your heat pump needs attention, AirGreen is the name you can trust.
The big day, step by step
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.
Your own project, step by step
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.
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
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).