Central system down before the warm season
As spring approached, the first warm weather in Lachine revealed a problem for one of our clients: their Goodman central heat pump refused to start. At AirGreen , we know that a breakdown of this type can quickly compromise the comfort of a home, especially when the HVAC system provides both heating and air conditioning. Our team responded quickly to diagnose and repair the system.
System Description
The client owns a Goodman central heat pump , installed about eight years ago in a typical house in the residential neighborhood of Lachine. This model, powered by R-410A refrigerant , is connected to an indoor electric furnace , ensuring year-round comfort. The outdoor unit, mounted on a raised galvanized steel base, is well protected from the elements, but exposed to dust and temperature variations typical of the Montreal climate.
Symptoms observed
The customer reported to us that:
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The indoor fan was running, but the air blown out remained lukewarm.
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The outdoor unit would no longer turn on, even when the requested temperature was much lower than the room temperature.
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No compressor noise was audible, but the circuit breaker tripped after each start attempt.
This type of symptom indicated either a short circuit in the compressor or a faulty control board .
Diagnosis carried out by our HVAC team
Our certified technicians undertook a complete check of the electrical and refrigeration circuit :
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Voltage control at the input of the outdoor unit: compliant with 240 V.
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Start capacitor inspection : worn over 70%, which prevented the compressor from starting the cycle properly.
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High pressure switch check : no blockage detected.
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Compressor start current analysis : too high, confirming capacitor failure.
Repair and recommissioning
Once the diagnosis is confirmed, we have:
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Replaced the faulty capacitor with a genuine Goodman part.
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Cleaned the condenser coil using a biodegradable product to optimize heat exchange.
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Checked the R-410A refrigerant level , which was found to be stable.
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Tested the compressor and outdoor fan over several operating cycles.
Result: The system resumed normal and silent operation upon first restart. The air coming out of the interior grilles reached 13°C , proof that the heat pump was operating optimally.
Preventive advice given to the client
After the repair, we explained to the owner the importance of annual preventative maintenance . Our recommendations included:
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Have the condenser coils cleaned every spring to prevent overheating.
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Check circuit breakers regularly and make sure they do not trip unnecessarily.
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Replace interior filters every three months to maintain efficient air circulation.
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Schedule a complete system inspection in the fall before the heating season.
These simple actions can extend the lifespan of a central heat pump and reduce energy consumption by up to 15% per year.
AirGreen expertise: reliability and proximity
This intervention in Lachine demonstrates the added value of AirGreen's HVAC repair service . We combine rapid diagnostics , genuine parts , and local expertise to ensure lasting repairs. Our technicians are trained on all major brands, including Goodman, Lennox, Trane, Midea, Bosch, and Comfortmaker .
We work every week in the residential and commercial sectors of Montreal, Laval, Longueuil, the South Shore and the North Shore , always ensuring total transparency on costs and progress of the work.
Final result: restored comfort and optimized performance
After our visit, the client immediately noticed restored comfort throughout the house . The outdoor unit, cleaned and tested, is operating at full efficiency, and the electricity bill will be significantly more stable during the warm season.