A Typical North Shore Service Call: A GoldStar Air Conditioner in Distress
At AirGreen , we were called to a condo in Boisbriand , on Montreal's North Shore , where a customer reported a performance issue with their GoldStar wall-mounted air conditioner . The unit, installed on the balcony, appeared to be working, but was no longer producing cold air. On a scorching day, indoor comfort was seriously compromised—a situation our technicians often encounter during the height of summer.
Diagnosis: A typical performance problem with older GoldStar models
Upon our arrival, our certified technician first performed a complete inspection of the outdoor unit.
The compressor started, but the discharged airflow was lukewarm , a sign of a disturbed refrigeration cycle.
Here are the checks carried out:
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R-410A refrigerant pressure : abnormally low level.
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Condenser coil : dirty, limiting heat transfer.
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Copper fittings : oily traces indicating a refrigerant leak .
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Start capacitor : slightly weakened capacitance value.
This type of failure is common in older GoldStar systems, often installed for more than ten years. Energy efficiency gradually declines, until a leak or compressor failure completely compromises performance.
AirGreen intervention: leak detection and safe restart
Once the diagnosis was confirmed, we took the following steps:
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Complete cleaning of the condenser with fresh water and biodegradable degreaser to remove dust and pollen deposits.
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Leak detection using nitrogen and electronic detector: the leak was located on a connection of the suction tube.
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Repair of the joint and re-soldering with silver solder to ensure a lasting seal.
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300 psi pressure test to validate system performance.
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Complete vacuum draw of the circuit for 45 minutes at –500 microns.
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Recharge R-410A refrigerant to the nominal charge according to the appliance specifications.
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Performance test : blowing temperature measured at 12°C, perfectly compliant.
Result: comfort restored and device optimized
The customer immediately noticed the difference. In less than 30 minutes of operation, the interior temperature of the condo dropped from 28°C to 23°C.
Our technicians also took the time to explain some good maintenance practices :
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Clean the internal filter every two weeks.
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Avoid blocking air circulation around the outdoor unit.
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Schedule an annual inspection before summer to prevent any leaks or reduced efficiency.
Thanks to this quick intervention, the GoldStar air conditioner regained its full cooling capacity without the need for a complete replacement.
What this intervention demonstrates: AirGreen expertise and reliability
This case perfectly illustrates our approach at AirGreen:
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An accurate diagnosis , without unnecessary replacement.
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Sustainable repairs based on understanding residential HVAC systems.
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Fast and professional intervention in the greater Montreal area, Laval, Longueuil, the North Shore and the South Shore .
Whether it's a GoldStar wall-mounted air conditioner , a Gree mini-split , a Fujitsu heat pump or a Midea system , our technicians have the experience and tools necessary to restore your comfort quickly while maximizing the lifespan of your device.
When to call us?
Call us as soon as you notice:
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A decrease in cold even if the fan is running.
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Unusual noises or vibrations from the compressor.
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Ice on copper pipes or abnormal water flow.
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A sudden increase in electricity consumption .
Early intervention can prevent costly repairs and prolong the performance of your HVAC system.
AirGreen: your trusted HVAC partner in Boisbriand and throughout Quebec
Our interventions are documented, precise and transparent. We always favor repair before replacement , except in the event of a major failure.
Our mission: to offer professional, efficient and human service to each client, whether in Boisbriand , Laval , Longueuil or elsewhere in the greater Montreal region .
In summary:
The service call in Boisbriand for a GoldStar wall-mounted air conditioner demonstrated, once again, the value of preventative maintenance and AirGreen's expertise in residential HVAC repair . The system, now fully functional, will ensure several additional seasons of summer comfort.