HVAC emergencies don’t wait: why every mistake can cost you dearly
When temperatures suddenly plummet in Montréal, Laval, or the North Shore, or a heatwave hits hard on the South Shore or in Longueuil, a sudden breakdown of a heat pump or central heating system becomes far more than just an inconvenience — it’s a real emergency. Yet in the stress of the moment, too many homeowners and property managers make decisions that actually make things worse. At AirGreen, with years of field experience handling HVAC emergency calls, we’ve seen it all — and we’re here to explain the most common and costly mistakes to absolutely avoid, the right actions to take, and how our team steps in effectively to restore comfort, safely and quickly.
The stress of a breakdown: understanding first reactions (and their consequences)
When a heating or cooling system fails, the natural reflex is often to look for a quick fix — sometimes too quick. Many people try to tinker with it themselves, call a friend “who knows a bit about this stuff,” or wait far too long before asking for help. These reactions, while understandable, can have serious consequences: compressor damage, refrigerant leaks, voided manufacturer warranties, or even safety risks (like electrical shorts or fires).
The 5 catastrophic mistakes to avoid during an HVAC emergency
1. Restarting the heat pump repeatedly without waiting
A classic mistake: after a breakdown, the owner turns the heat pump off and back on multiple times, hoping it will magically start again. This can overload the compressor or damage the control board. Our technicians confirm it: some compressors become completely unrepairable due to impulsive restarts.
2. Tampering with the electrical panel without technical knowledge
Unplugging a fuse or messing with the breaker without understanding the real issue can make the problem worse or create a safety hazard. At AirGreen, we’ve had to intervene after clients caused major electrical shorts by touching the wiring of their outdoor unit or electrical panel.
3. Ignoring strange noises or suspicious smells
A high-pitched whine, a metal vibration, or a burning smell? These are never signs to ignore. A refrigerant leak or overheating motor can cause irreversible damage if not addressed quickly.
4. Calling an uncertified technician or a non-specialized company for HVAC emergencies
In a panic, some look for “the cheapest” or “the fastest” option on a mobile app. The result: sloppy diagnostics, unnecessary part replacements, and botched repairs. The AirGreen team has often had to clean up the mess from unqualified technicians, costing the client time and money.
5. Waiting several days before reacting
Some minor issues — like a tripped breaker or a sluggish fan — can escalate fast. A small problem today could become a major repair tomorrow.
The AirGreen approach: fast, professional, and uncompromising response
At AirGreen, we’ve built a structured emergency service, available 7 days a week throughout Greater Montréal, including Montréal, Laval, Longueuil, the North Shore, and the South Shore. Our technicians are certified, experienced, and trained to quickly diagnose, repair efficiently, and most importantly, reassure clients during critical moments.
Average response time: between 3 to 6 hours
Out of over 120 emergency interventions completed in 2024, our technicians maintained an average response time of under 6 hours — even during deep freezes.
On-site diagnostics with smart digital equipment
Each technician is equipped with connected tablets that allow access to technical diagrams for brands like Fujitsu, Gree, Bosch, Goodman, Lennox, Arcoaire, and more — enabling them to pinpoint the problem immediately.
Real-world case study: heat pump failure in Laval at -20°C
This past January, a family in Laval contacted us in the middle of the night: their Bosch BOVA central heat pump had stopped heating. On site, our technician found a severely clogged outdoor coil and a faulty frost sensor. Thanks to our mobile inventory of parts, we were able to replace the sensor, perform a high-pressure coil cleaning, and reset the system — all within 2 hours. Result: the home was warm again without unnecessary delay.
What you can do while waiting for our team
In case of a breakdown, here are the right reflexes to adopt:
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Shut off the unit’s power at the dedicated breaker.
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Write down any error codes showing on the thermostat or indoor unit.
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Check if air filters are clean, but don’t force anything if unsure how to remove them.
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Call AirGreen immediately: we prioritize urgent cases, especially in extreme cold.
Why choose AirGreen for your HVAC emergencies in and around Montréal?
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Rapid coverage across all Montréal boroughs, Laval, Longueuil, and nearby suburbs.
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Multi-brand certified technicians (Fujitsu, Gree, Sharp, Tosot, Bosch, Goodman, and more).
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Fully equipped service vehicles for on-the-spot repairs with no part delays.
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Full follow-up after the visit: diagnostic report, recommendations, and performance checks.
Maintenance tips to prevent future breakdowns
To minimize the risk of future emergencies, we recommend:
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Full HVAC maintenance in spring and fall, including cleaning, connection checks, and sensor calibration.
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Preventive replacement of parts after 8–10 years of intensive use.
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Installing smart thermostats that detect anomalies faster.
Final thoughts: every avoided mistake can make all the difference
HVAC failures in the heart of winter or peak summer are always stressful — but bad decisions made in the heat of the moment can turn a simple repair into a full system replacement. Thanks to our expertise, fast response times, and human-centered approach, AirGreen remains your best ally for handling these situations safely and efficiently.
Don’t let a small mistake become a major bill. When in doubt, contact our emergency team right away.