Repair of a Goodman Mini Split Heat Pump in Plateau-Mont-Royal
We brought an aging Goodman heat pump back to life in Plateau-Mont-Royal! Discover how AirGreen’s expert team saved the day and extended the life of this trusted machine.

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.
How We Extended the Life of a Trusted Machine in Plateau-Mont-Royal
In the heart of Plateau-Mont-Royal, surrounded by bustling streets and historic charm, we were called upon to breathe new life into an aging Goodman mini split heat pump. This service call wasn’t just about repair—it was about revitalizing a system that had faithfully served its owners through countless summers and winters. The result? A thrilled customer and a machine ready to take on many more years of Montreal’s unpredictable climate.
A Trusted Heat Pump in Need of Care
When we arrived at the customer’s residence, it was immediately clear that their Goodman mini split heat pump had seen better days. Installed nearly a decade ago, this machine had been a reliable source of comfort, but age and wear had begun to take their toll. The owner reported reduced efficiency and sporadic performance—symptoms that could easily lead to a complete breakdown if left unattended.
But we saw the potential in this resilient machine. Goodman heat pumps are renowned for their durability and efficiency, and we knew that with the right expertise and care, this unit could continue to serve its purpose for years to come.
Diagnosing the Problem: Where Experience Meets Precision
The first step in our repair process was a thorough inspection. Using advanced diagnostic tools, we meticulously examined the unit, checking everything from the compressor to the refrigerant levels. It didn’t take long to identify the culprits:
- Clogged Air Filters: The indoor unit’s filters were almost completely blocked, restricting airflow and overburdening the system.
- Refrigerant Imbalance: The refrigerant levels were slightly off, a common issue that can compromise both cooling and heating performance.
- Electrical Connections: Some of the internal connections showed signs of corrosion, likely due to Montreal’s humid summers.
Armed with this information, we formulated a step-by-step repair plan tailored to restore this Goodman mini split to peak performance.
The Repair Process: Breathing New Life Into the Machine
With the diagnosis complete, our team rolled up their sleeves and got to work. Here’s how we tackled each issue:
1. Cleaning and Replacing Filters
The indoor unit’s filters were carefully removed and cleaned using eco-friendly solutions. This not only restored proper airflow but also improved the overall air quality in the home. For added peace of mind, we provided the customer with tips on maintaining the filters to prevent future issues.
2. Adjusting Refrigerant Levels
We recalibrated the refrigerant to ensure optimal cooling and heating efficiency. This step is crucial, especially in Montreal’s fluctuating climate, where a heat pump needs to switch seamlessly between modes.
3. Securing Electrical Connections
To address the corrosion, we cleaned and secured all affected connections, ensuring the system could operate safely and efficiently. This step significantly reduced the risk of future electrical failures.
4. Comprehensive System Testing
Once the repairs were complete, we tested the heat pump across all settings—cooling, heating, and dehumidification. The unit performed flawlessly, delivering consistent airflow and maintaining the desired temperature with ease.
Customer Satisfaction: A Job Well Done
Our customer couldn’t have been happier with the results. They were initially concerned that their aging Goodman heat pump was beyond saving, but our expert repair work proved otherwise. By addressing the core issues and implementing preventive measures, we extended the life of their machine, saving them the cost and hassle of a full replacement.
The customer was particularly impressed by our attention to detail and willingness to explain each step of the process. As they put it, “AirGreen didn’t just fix my heat pump—they gave me confidence in my HVAC system again.”
Why Goodman Heat Pumps Are Worth the Effort
Goodman heat pumps are known for their robust construction and reliable performance, making them a popular choice for homes in Montreal and beyond. However, like any mechanical system, they require regular maintenance to stay in top shape. Our experience with this service call reinforced a key lesson: even an aging unit can deliver excellent performance with the right care.
Some standout features of Goodman heat pumps include:
- Energy Efficiency: These units are designed to maximize energy savings, an important consideration for environmentally conscious homeowners.
- Versatility: With their ability to provide both heating and cooling, Goodman heat pumps are ideal for Montreal’s diverse climate.
- Durability: Built to last, these machines can handle years of wear and tear when properly maintained.
Preventive Maintenance: The Key to Longevity
This repair was a success story, but it also served as a reminder of the importance of regular maintenance. To help our customer avoid similar issues in the future, we recommended:
- Cleaning or replacing filters every 1-2 months, especially during peak usage seasons.
- Scheduling professional tune-ups at least once a year.
- Keeping the outdoor unit clear of debris to ensure proper airflow.
By following these simple steps, homeowners can not only extend the life of their heat pumps but also enjoy optimal performance year-round.
Choose AirGreen for Your HVAC Needs
At AirGreen, we take pride in offering top-notch HVAC services throughout Montreal, Laval, Longueuil, the North Shore, and the South Shore. Whether it’s repairing an old system, installing a new one, or providing routine maintenance, our team is committed to delivering excellence.
This Goodman mini split heat pump repair in Plateau-Mont-Royal is just one example of our dedication to customer satisfaction and quality workmanship. If you’re looking for reliable, professional HVAC services, look no further than AirGreen.
Contact Us Today
If your heat pump or air conditioner is in need of repair, don’t wait for the problem to get worse. Contact AirGreen for fast, efficient service that gets the job done right the first time.
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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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).
