A quick service call for a blower failure on a Gree indoor unit
At AirGreen , we frequently receive calls about Gree wall-mounted heat pumps that stop blowing properly, especially at the end of winter when there have been many defrost cycles. This call came from a customer located in the Rosemont–La Petite-Patrie neighborhood of Montreal. Their wall-mounted unit was no longer producing heat and was making a slight internal clicking noise without starting the fan.
Diagnosis: Stuck fan motor and faulty control board
After opening the top cover, our technicians observed a significant accumulation of dust on the cylindrical fan and evaporator fins . This mechanical imbalance prevented the motor from starting normally, resulting in an electrical overload detected by the electronic board.
By running a series of tests using our multimeter, we confirmed that the main control board had experienced a power surge, making it impossible to activate the blower motor.
Repair Steps
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Complete power cut to secure the intervention area.
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Thorough cleaning of the fan and evaporator using a non-corrosive product and low pressure rinsing.
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Replacement of the fan motor with an original Gree model, calibrated according to the power of the unit (12,000 BTU).
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Installed a new control board and checked the compatibility of connectors and temperature sensors.
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Complete functional test : verification of start-up, ventilation speeds, hot/cold mode changeover and drainage.
Result: performance and comfort restored
Once the system was restarted, the customer immediately noticed a strong and stable blowing , as well as a smooth rise in temperature in the main room. Thermal readings confirmed optimal energy efficiency , with a coefficient of performance of 4.1, perfectly in line with the specifications of the manufacturer Gree.
Thanks to a quick and rigorous intervention, we avoided the complete replacement of the unit and extended its useful life by several years.
AirGreen Tips to Extend the Life of Your Wall-Mounted Heat Pump
Annual preventive maintenance is essential to ensure the performance and reliability of a wall-mounted heat pump:
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Clean air filters regularly (every 4 to 6 weeks).
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Avoid obstructing air circulation around the indoor unit.
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Have electrical connections and drainage inspected by a qualified technician once a year.
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Schedule a complete professional cleaning at the end of each heating season.
These simple actions help reduce energy consumption and prevent costly breakdowns , such as those related to control cards or ventilation motors.
AirGreen: your reference for wall-mounted heat pump repairs in Montreal
Our team of RBQ and CCQ certified technicians responds quickly in Montreal, Laval, Longueuil, the North Shore and the South Shore for the diagnosis and repair of all brands: Gree, Midea, Sharp, Fujitsu, Hitachi, Bosch, Lennox , and more.
The intervention carried out in Rosemont–La Petite-Patrie demonstrates our approach: in-depth technical expertise, human service and sustainable solutions for each residential client.