The 8 Commandments from AirGreen Experts to Avoid a Winter Breakdown of Your Wall-Mounted Heat Pump

Anticipate to Better Prevent: The Crucial Importance of Winter Maintenance

In Montréal, Laval, Longueuil, as well as on the North Shore and South Shore, winter spares no one. When the biting cold settles in, the reliability of your wall-mounted heat pump becomes essential. At AirGreen, we regularly intervene to fix winter breakdowns that could easily have been avoided. Our extensive field experience has allowed us to establish 8 crucial rules to prevent any winter malfunction, protect your comfort, and ensure the longevity of your HVAC installation.

Commandment 1: Regularly Check Air Filters

A clogged filter is the number one cause of winter breakdowns. Regular HVAC maintenance, including cleaning or replacing air filters every 30 to 60 days, ensures optimal airflow and prevents system overload, especially during extreme cold spells.

• Practical tip: Schedule a monthly reminder to check your filters, particularly if you live in densely populated urban areas like Montréal or Laval.

Commandment 2: Keep the Outdoor Unit Free of Snow and Ice

At AirGreen, we frequently encounter this common issue on the South Shore and North Shore: ice or snow buildup around the outdoor unit obstructs proper heat exchange and causes unexpected shutdowns. Constant vigilance during winter is essential.

• Immediate action: Regularly remove snow and ice carefully to avoid physical damage to the equipment.

Commandment 3: Regularly Inspect the Thermostat and Remote Control

A faulty or improperly configured thermostat is another frequent cause of winter breakdowns in Longueuil or elsewhere in the Montréal region. Ensure that your thermostat or remote control displays a coherent and realistic temperature, adapted to outdoor conditions.

• Common mistake: Avoid setting your heat pump to extreme temperatures, as this unnecessarily overloads the unit.

Ensuring Maximum Protection for Your Heat Pump in Winter

At AirGreen, our priority is to offer concrete solutions to maintain your equipment in perfect condition during the harsh Québec winter. Here are the next essential commandments to guarantee peace of mind during freezing temperatures.

Commandment 4: Have Your Heat Pump Inspected Annually by a Professional

Annual inspection by our AirGreen technicians ensures that all internal and external components of your wall-mounted heat pump are in perfect condition. This includes a thorough check of the compressor, refrigerant lines, and refrigerant levels.

• Major benefit: This allows you to anticipate costly breakdowns and fully benefit from available government grants, notably the LogisVert programs.

Commandment 5: Pay Attention to Unusual Noises

Any unusual noise from your unit often indicates an imminent issue. Whistling, buzzing, or metallic sounds should immediately be addressed to avoid expensive repairs in Laval or Montréal.

• Expert advice: Immediately contact a professional to quickly diagnose the source of the noise.

Commandment 6: Monitor Water and Condensate Drainage

During winter, condensate drain lines can freeze, particularly if your unit is installed in wind-exposed areas such as Longueuil or certain parts of the North Shore. At AirGreen, we recommend regular monitoring and preventive maintenance of these lines.

• Preventive measure: Install a heating cable around the drain lines to prevent freezing.

Commandment 7: Keep Refrigerant Line Insulation and Sealing in Perfect Condition

Poorly insulated refrigerant lines can freeze and reduce the efficiency of your heat pump. In Montréal, we have often observed that simply checking the condition of line insulation prevents significant energy losses and costly breakdowns.

• Best practice: Have our experts regularly inspect thermal insulation during maintenance visits.

Commandment 8: Ensure a Stable Power Supply

In Laval, Longueuil, or Montréal, winter electrical fluctuations—especially due to snowstorms—can cause major malfunctions. At AirGreen, we emphasize the importance of installing a voltage stabilizer to effectively protect your equipment.

• Proven solution: Use surge protection devices recommended by our experts.

Real Testimonials: How These Commandments Work for Our Clients

At AirGreen, we have helped many clients from the North Shore and South Shore prevent winter breakdowns by precisely following these eight commandments. For instance, a recent installation of a Fujitsu KZAH 12,000 BTU wall-mounted heat pump in Brossard clearly demonstrated the effectiveness of these best practices. The client had previously experienced several winter breakdowns, but thanks to our advice and interventions, their heat pump now functions perfectly, even at -25°C.

Our mission is clear: guarantee your thermal comfort throughout winter, preventing costly and unpleasant interruptions. These proven commandments come directly from our extensive experience and are specifically adapted to Québec’s climate realities.