A sudden breakdown in the heat: rapid and efficient intervention by AirGreen
At AirGreen , we know that when a central heat pump breaks down, especially during hot weather, every minute counts. This is exactly the situation recently experienced by a client in Sainte-Julie , on Montreal's South Shore, whose Goodman system had stopped blowing cool air into the house.
The outdoor unit, securely mounted on a metal wall bracket, appeared intact. However, there was no audible start signal from either the fan or the compressor. One call to AirGreen service later, and our team was on site to get the home's comfort back on track.
Initial diagnosis: a power supply problem
Upon our arrival, our technicians carried out a complete visual inspection of the installation. The Goodman condenser , vertical format, was properly connected to a power supply protected by a cut-off box , and the refrigerant line was in excellent condition.
Diagnostic steps:
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Checking the electrical voltage : no power was reaching the unit.
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Inspection of the cut-off box : the internal fuse had blown, probably following a temporary short circuit.
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Wiring analysis : The wires connecting the electrical outlet to the compressor showed slight signs of overheating .
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Continuity Test : Irregular resistance was detected on the low voltage control wire.
The verdict: A damaged wire inside the electrical conduit , causing intermittent power loss.
Complete repair: safety, precision and performance
Our technicians immediately disconnected the power supply to carry out a safe repair. The faulty wire was replaced with a new, CSA-compliant cable , then insulated and protected with a waterproof conduit.
We also have:
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Replaced the fuses in the cut-off box.
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Cleaned the compressor and start relay connections .
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Checked the R-410A refrigerant pressure , which was found to be stable.
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Restarted the system under supervision for 20 minutes to confirm proper operation.
Result: the Goodman heat pump restarted without hesitation, with a constant flow of cold air and an optimal condensation cycle .
Prevention: How to avoid heat pump electrical failures
An electrical outage like this could have been avoided with an annual inspection . At AirGreen, we always emphasize the importance of preventative maintenance before the warm season.
Here are some tips we often share with our clients:
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Have the electrical box and fuses checked in the spring.
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Ensure that the wall bracket is stable and free from corrosion.
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Monitor any outages or disconnections in the home electrical system.
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Never force a unit to start manually without professional inspection.
These simple actions not only help prevent breakdowns, but also extend the life of the compressor and improve energy efficiency .
A reassured customer and restored comfort
After the repair, we took the time to explain to the customer the exact cause of the problem and the precautions to take going forward. The immediate satisfaction of having fresh air throughout the house was well worth our quick response.
This case perfectly illustrates AirGreen's mission:
Diagnose quickly, repair sustainably and ensure peace of mind for every customer.
AirGreen: Your Trusted HVAC Partner in Montreal and the South Shore
Whether it's a Goodman central heat pump , a Fujitsu wall-mounted air conditioner , or a Midea multi-zone system , our technicians operate throughout Montreal, Laval, Longueuil, and the North Shore and South Shore regions .
We offer:
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Rapid interventions 7 days a week .
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Guaranteed original parts .
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Certified and trained technicians on all brands .
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Recognized expertise in residential and commercial HVAC systems .
At AirGreen, every intervention is carried out with rigor, respect, and attention to detail—because your comfort doesn't wait.