How to effectively manage a wall-mounted heat pump failure during the cold season in Montréal and surrounding areas
Few things are more uncomfortable than a broken wall-mounted heat pump when temperatures in Montréal, Laval, Longueuil, North Shore or South Shore drop well below freezing. At AirGreen, we understand how frustrating—and even stressful—a sudden breakdown can be. This guide will help you understand exactly what to do when it happens, so you can stay safe and comfortable while waiting for one of our licensed HVAC technicians.
Quickly identifying the first signs of a wall-mounted heat pump failure
Your wall-mounted heat pump is the cornerstone of your winter comfort—especially in Québec, where extreme weather puts constant strain on HVAC equipment. Spotting the warning signs early is key:
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Unusual cold airflow: If your heat pump is blowing air but not heating the room, that’s often the first red flag.
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Frequent shutdowns and erratic restarts: An inconsistent cycle usually indicates an electrical or mechanical issue.
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Unusual noises: Clanking, rattling, or high-pitched sounds often signal internal problems that require urgent attention.
If you notice any of these signs, it’s essential to take immediate action to prevent the situation from escalating.
Initial checks and steps to take before your AirGreen technician arrives
Before reaching out to a professional like AirGreen, it’s worth doing a few simple checks to evaluate the severity of the issue:
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Check the power supply: Make sure your heat pump is properly connected and that no breaker has tripped.
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Reset the unit: Turn off the unit completely, wait a few minutes, and turn it back on to see if a reset solves the issue.
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Inspect the air filters: A clogged filter can prevent your unit from heating efficiently. Clean or replace the filter if necessary.
Temporary solutions to stay warm while waiting for the repair
If your system is down for an extended period in winter, maintaining minimal indoor warmth becomes essential. Here are some practical, short-term tips recommended by our AirGreen technicians:
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Use electric space heaters safely: Choose units with adjustable thermostats to avoid unnecessary electricity use.
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Seal off windows and doors: Limit heat loss by closing gaps with thick curtains or draft blockers.
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Leverage natural sunlight: Open curtains and blinds during the day to absorb sunlight, then close them tightly at night to retain the heat.
AirGreen field experience: handling a heat pump emergency in Laval
At AirGreen, we recently responded to a customer in Laval who faced a sudden failure of their Fujitsu wall-mounted heat pump (model KETA, 12,000 BTU) during a critical cold snap of -15°C.
As soon as the call came in, our technical team provided immediate guidance to help the client maintain basic indoor comfort. Once on-site, our rapid diagnostic revealed a defective compressor. Thanks to our in-stock inventory of Fujitsu parts, we completed the repair within 24 hours. The client deeply appreciated our swift response and the high-quality follow-up service.
This real-world case perfectly illustrates our commitment to residents across Laval, Montréal, Longueuil, North Shore, and South Shore.
Mistakes to absolutely avoid during a winter heat pump failure
Some missteps can actually make the situation worse:
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Don’t try DIY repairs: Wall-mounted heat pumps contain sensitive electronics. Tampering with them can lead to bigger, more expensive problems.
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Avoid overloading your circuits: Plugging in too many space heaters at once can cause an electrical overload or even a fire hazard.
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Don’t ignore early signs of failure: Delaying your call to an HVAC expert like AirGreen could turn a minor issue into a major repair or replacement.
Why trust AirGreen for your wall-mounted heat pump repair?
Choosing AirGreen for an emergency repair of your wall-mounted heat pump in Montréal or surrounding areas means relying on a trustworthy, experienced, and highly responsive partner. Here’s why:
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Specialized expertise in wall-mounted heat pumps: Our technicians are certified and continuously trained to service all major brands (Fujitsu, Gree, Mitsubishi, Samsung, etc.).
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Rapid response: We act fast in all regions of Montréal, Laval, Longueuil, North Shore, and South Shore.
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Transparent diagnostics and pricing: We clearly explain what’s wrong, what needs fixing, and always provide detailed quotes—no surprises.
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Strong warranties and after-sales support: We back our repairs with extended warranties, demonstrating our commitment to quality and long-term reliability.
Take advantage of grants when replacing your faulty wall-mounted heat pump
Sometimes, a broken heat pump is a great opportunity to upgrade to a more efficient model—especially if it qualifies for Hydro-Québec’s LogisVert rebates. AirGreen can guide you through the entire process, helping you maximize both your energy savings and your financial return.
At AirGreen, we know that a broken wall-mounted heat pump in the middle of winter is a serious issue that requires professionalism, urgency, and care. Trust our team to restore your indoor comfort as quickly and efficiently as possible.