Precision intervention for restored comfort
At AirGreen , every service call is an opportunity to demonstrate our expertise in residential HVAC system repair . This time, we were contacted in Brossard , on the South Shore , to resolve a breakdown on a Whirlpool wall-mounted air conditioner whose indoor unit was no longer blowing cold air, despite a properly functioning outdoor unit.
The context of the intervention
The customer called us after several days of sweltering heat. His Whirlpool wall-mounted air conditioner seemed to respond to the remote control, but the room remained warm, and there was no noticeable airflow.
A typical sign of a blocked indoor fan , a clogged blower module or a faulty electronic board .
The apartment, located in a recent building in Brossard, had a typical installation: a compact wall-mounted unit installed about two meters above the ground, and an outdoor condenser on a wall bracket on the balcony side. Maintenance had not been performed for over two years—a key factor often at the root of this type of problem.
Complete diagnosis from our AirGreen technician
Upon arrival on site, our technician carried out a methodical inspection of the wall-mounted air conditioner :
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Checking the remote control and infrared receiver : signal received well, no communication failure.
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Indoor fan inspection : impeller blocked by significant accumulation of dust and fine mold.
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Control board test : stable power supply, but no motor start signal - indicating a possible short circuit on the board.
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Blower motor analysis : winding slightly overloaded, a consequence of prolonged mechanical resistance due to fouling.
The intervention step by step
To get the system back up and running, our team carried out a thorough maintenance operation :
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Complete removal of the front cover and filters.
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Disassembly and cleaning of the tangential fan (the long horizontal turbine inside the unit).
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Antibacterial cleaning of the evaporator coil using a Whirlpool approved product.
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Preventive replacement of the blower motor , whose thermal insulation was showing signs of fatigue.
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Minor repair of the electronic board , consisting of resoldering a cracked connection on the motor power module.
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Complete reassembly and testing in real conditions for 20 minutes.
Result: a high-performance air conditioner again
Once the intervention was completed, the Whirlpool wall-mounted air conditioner regained its full efficiency. The airflow became powerful and uniform again, with a blowing temperature of 10°C at the outlet , confirming a good refrigeration cycle.
The customer immediately felt the difference and was pleasantly surprised by the system's quiet sound after cleaning.
Maintenance advice provided to the customer
To avoid a recurrence, our technician reminded us of some good HVAC maintenance practices :
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Clean the filters at least once a month during the summer.
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Avoid obstructing the unit's air outlet with furniture or curtains.
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Schedule an annual professional service , including checking refrigerant pressure and control board condition.
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Watch for unusual noises , a warning sign of a fan imbalance or an overloaded motor.
A typical South Shore repair: thoroughness and speed
Our interventions in Brossard , Saint-Lambert or La Prairie often have one thing in common: well-installed systems, but lacking regular maintenance. This case perfectly illustrates the importance of preventive cleaning of wall-mounted air conditioners , a service that we offer throughout Greater Montreal, including Laval , the North Shore and the South Shore .
Thanks to our structured and certified approach , we guarantee the durability and performance of each appliance, regardless of its brand — Whirlpool, Fujitsu, Midea, Sharp, Hitachi, or Gree.
The AirGreen Commitment: Peace of Mind
By choosing AirGreen for the repair of your HVAC system , you benefit from:
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of an accurate diagnosis before any intervention,
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of original or equivalent quality parts ,
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of a certified workforce that respects your environment,
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and personalized post-service monitoring , guaranteeing system stability over time.
Our mission is simple: to restore your comfort quickly, cleanly and sustainably.