Expert intervention on an urban balcony
In Côte-des-Neiges , in one of those typical Montreal buildings where every square meter of balcony counts, our AirGreen team was called to diagnose and repair a Panasonic Inverter wall-mounted heat pump . This type of installation, often chosen for its performance and discretion, requires special attention when it comes to maintenance or troubleshooting, especially in a restricted environment like a condominium balcony.
The context of the service call
The customer contacted us after noticing that his heat pump was no longer producing enough heat despite a running compressor. This symptom, which is common at the end of winter, can be caused by several factors: a clogged outdoor unit , a lack of refrigerant (R-410A or R-32) , or a malfunctioning temperature sensor .
Our technicians, trained specifically for Inverter systems, quickly scheduled an on-site visit.
Complete on-site diagnosis
Upon our arrival, we carried out a complete assessment of the HVAC system :
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Visual inspection of the Panasonic Inverter outdoor unit, slightly clogged with dust and urban debris.
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Checking the air flow through the exchanger.
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Refrigerant pressure measurement.
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Compressor starting current test.
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Reading internal error codes via the electronic card.
The diagnosis revealed a drop in refrigerant pressure , probably caused by a micro-leak on one of the copper line fittings.
Repair: precision and efficiency
For this type of breakdown, thoroughness is essential. Here are the key steps of our intervention:
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Recovery of the remaining refrigerant gas using an approved recovery company.
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Leak detection using electronic detector and foam solution.
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Brazing of the connection with the microleak, respecting CSA standards and the pressures specific to Inverter systems.
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Leak test under nitrogen for 30 minutes to confirm no leaks.
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Complete vacuum draw (500 microns).
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Accurate recharge of R-410A refrigerant , according to Panasonic specifications.
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Restart the system and check the heating and cooling cycles .
Result: performance restored and comfort restored
After the repair, the Panasonic heat pump returned to full efficiency. The indoor temperature quickly stabilized, and electricity consumption returned to normal. The client particularly appreciated the discreet and cleanliness of the work on his balcony—an essential feature in a Montreal condominium setting.
Recommended preventive maintenance
This intervention reminds us of the importance of annual maintenance of wall-mounted heat pumps :
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Cleaning the outdoor condenser and indoor filter.
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Checking the refrigerant level.
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Electrical and mechanical inspection.
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Inverter board control.
At AirGreen , we recommend a complete maintenance in the spring , before the summer season, to avoid overloads and breakdowns during heat waves.
Why choose AirGreen for your HVAC repairs in Montreal
Our team operates throughout Greater Montreal , including Laval, Longueuil, the North Shore and the South Shore . Thanks to our experience with Panasonic, Fujitsu, Gree, Midea, Sharp, Goodman, Zephyr systems, and many others, we are able to quickly identify any problem, whether electrical, refrigeration or mechanical .
Our advantages:
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CMMTQ and TSSA certified technicians.
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Fully equipped vehicles for on-site repairs.
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Rapid intervention, even in confined urban environments.
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Exclusive use of parts and refrigerants that comply with Quebec environmental standards.
In summary
The repair of this Panasonic heat pump in Côte-des-Neiges once again demonstrates AirGreen 's expertise in the maintenance and recommissioning of residential HVAC systems in urban areas. Thanks to our rigorous approach and attention to detail, we guarantee our customers lasting comfort , summer and winter.