Repair of an Air Tempo Wall-Mounted Heat Pump in Montreal
Discover how we repaired an Air Tempo heat pump in Montreal, restoring warmth and comfort just in time for winter with a quick, lucky fix!
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 Fortunate Fix: A Tale of Reliability and Luck
At AirGreen, we take immense pride in delivering high-quality HVAC services to our Montreal community. Our latest project involved repairing a wall-mounted Air Tempo heat pump—a task that put both our skills and quick thinking to the test. Join us as we walk you through this installation journey, revealing why AirGreen is the trusted choice for HVAC solutions.
The Call That Started It All
One chilly morning, we received a call from a client in Montreal. Their wall-mounted Air Tempo mini-split heat pump was struggling, refusing to provide the much-needed warmth as temperatures started to dip. As winter loomed closer, it was crucial to get this unit back in working order, ensuring a cozy and comfortable home for our customer.
Upon arrival, our skilled technician immediately set to work diagnosing the problem. The verdict? A broken four-way valve, a crucial component responsible for the system's efficient heating and cooling operations. Without it, the heat pump was unable to switch modes properly, leaving our client in discomfort.
A Stroke of Luck: The Spare Part Story
Now, here's where things got interesting. Finding a compatible four-way valve can sometimes be a long and arduous process, especially for specific models like the Air Tempo unit. However, as fortune would have it, our inventory held the very spare part we needed. It was an unusual stroke of luck, considering that sourcing unique components can often take days or even weeks.
Why Was This Spare Part Important?
- Critical Function: The four-way valve controls the direction of refrigerant flow, enabling seamless switching between heating and cooling modes.
- Precision Engineering: It's a part that requires exact specifications to match the existing system, making it essential to have the correct model on hand.
Our team wasted no time, swiftly replacing the broken valve with the spare one. The repair required a delicate touch and precision, ensuring no damage to the surrounding components.
The Art of a Seamless Repair
Expertise and attention to detail are what set AirGreen apart. Once the new valve was in place, we conducted a series of rigorous tests to confirm everything was working perfectly. We checked the refrigerant levels, monitored the airflow, and ensured that the heat pump seamlessly transitioned between heating and cooling.
Key Steps in Our Repair Process:
- Diagnostic Evaluation: A comprehensive check to identify the root cause of the issue.
- Part Replacement: Carefully removing the faulty four-way valve and installing the new one.
- System Testing: Running the heat pump in various modes to verify optimal performance.
- Customer Walkthrough: Explaining the repair process and answering any questions the homeowner had.
Our meticulous approach guarantees not only immediate results but also long-term reliability.
Why the Air Tempo Heat Pump Stands Out
The Air Tempo mini-split heat pump is a marvel of modern HVAC technology, designed to provide efficient and reliable comfort throughout the year. It features:
- Energy Efficiency: High SEER (Seasonal Energy Efficiency Ratio) ratings that help lower electricity bills.
- Quiet Operation: Minimal noise levels, perfect for maintaining a peaceful home environment.
- Compact Design: Ideal for homes in urban areas like Montreal, where space can be limited.
Our client was thrilled to learn that their heat pump would be operational for many more years, thanks to this quick and effective repair. We left the site knowing that another Montreal home was ready to face the upcoming winter with confidence.
The Importance of Preventive Maintenance
While we were fortunate to have the necessary part in stock, it serves as a reminder of the value of regular maintenance. Heat pumps, like any other complex system, benefit from routine checks to keep them functioning efficiently. Here's what we recommend:
- Seasonal Inspections: A biannual checkup to ensure all components are in working order.
- Filter Cleaning: Keeping filters clean improves airflow and system performance.
- Refrigerant Level Checks: Ensuring the refrigerant is at the proper level to prevent wear and tear on the system.
Choosing AirGreen for Your HVAC Needs
Our commitment to excellence is what makes AirGreen the go-to choice for HVAC services in Montreal, Laval, Longueuil, North Shore, and South Shore. We don't just fix problems; we provide peace of mind.
Why Our Customers Trust Us:
- Fast and Reliable Service: We respond promptly and get the job done right the first time.
- Expert Technicians: Our team is trained to handle even the most complex HVAC issues.
- Quality Parts: We use high-quality, compatible components to ensure long-lasting repairs.
From emergency repairs to routine maintenance, AirGreen is here to keep your home comfortable all year round.
Final Thoughts: A Repair Done Right
Reflecting on this project, we're reminded of the importance of preparedness, skill, and a bit of luck. Having the right spare part at the right time isn't always guaranteed, but when it happens, it's a testament to our commitment to maintaining a well-stocked inventory for our clients' needs.
Our client can now enjoy a warm and cozy home, knowing that their Air Tempo mini-split heat pump is in perfect working condition. And for us? It's another successful job and a satisfied customer, which is always the ultimate goal.
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?
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
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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).
3 comments
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Mon appareil ne pousse plus de chaleur ni de froid fanes ne pousse pas
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