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Réparation d’une thermopompe murale Beco à Rosemère
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Repair of a Beco wall-mounted heat pump in Rosemère

An external breakdown that compromises interior comfort

At AirGreen , our teams respond weekly to resolve a variety of residential HVAC system issues. One of our recent service calls took place in Rosemère , on Montreal's North Shore , where a homeowner contacted us after noticing that their Beco wall-mounted heat pump was no longer producing heat despite the outdoor unit apparently working.

At first glance, the condenser fan was spinning, but no heat was being transferred to the indoor unit . This type of symptom often indicates a refrigeration cycle problem—either a refrigerant leak, a faulty compressor, or a reversing valve problem.

In-depth diagnosis: a refrigeration problem confirmed

Upon our arrival, our AirGreen certified technician carried out a series of checks:

  • Inspection of electrical wiring and connections between units.

  • Check operating pressures using pressure gauges suitable for the R-410A refrigerant used on this model.

  • Testing the four-way valve responsible for switching between heating and air conditioning.

  • Compressor and condenser fan control .

The measurements quickly confirmed an abnormally low pressure , a sign of a refrigerant leak . After a nitrogen test, the leak was located on a poorly tightened sniffed connection at the compressor outlet.

Complete repair and system recharge

Once the problem was identified, our technician took the following steps:

  1. Tightening and remanufacturing the flared fitting , taking care to respect the tightening torque recommended by the manufacturer Beco.

  2. Complete leak test at 350 psi with nitrogen to ensure perfect hermeticity of the circuit.

  3. Creation of a high vacuum of 500 microns using a precision vacuum pump.

  4. Complete recharge with R-410A refrigerant according to the quantity specified on the outdoor unit nameplate.

  5. Performance test : measurement of the difference in temperature between incoming air and outgoing air at the indoor unit and verification of stable pressures after 15 minutes of operation.

The result was conclusive: the system regained its optimal performance, with a warm and stable blowing temperature.

Recommended preventive maintenance

At the end of the intervention, our technician reminded the owner of the importance of annual maintenance of the wall-mounted heat pump . A simple cleaning of the coil, the filter and a visual inspection of the connections can prevent up to 80% of breakdowns related to refrigeration or humidity.

At AirGreen, we particularly recommend before each winter:

  • Cleaning the outdoor condenser to prevent corrosion and deposits.

  • Checking the fixings and the condensate drain .

  • The closed circuit pressure test .

AirGreen Expertise: Reliability Above All

This service in Rosemère perfectly illustrates our philosophy: to intervene quickly, diagnose accurately and guarantee the durability of each repair. We combine modern technology and field experience to offer superior HVAC repair services in Montreal, Laval, Longueuil, on the North Shore and the South Shore .

No matter the brand— Beco, Gree, Midea, Sharp, Fujitsu, or Lennox —our technicians are trained to quickly detect the root causes of breakdowns, whether electrical, mechanical, or thermodynamic.

Thanks to our rigorous approach, this Beco wall-mounted heat pump in Rosemère is now operating at full efficiency, giving its occupants the comfort and peace of mind they deserve.