An AirGreen intervention in the heart of Sainte-Dorothée: bringing a well-hidden Goodman heat pump back to life
In a charming residential area of Sainte-Dorothée , Laval, our AirGreen team was called for a service call regarding a Goodman wall-mounted heat pump that appeared to have lost performance. The customer had noticed that the unit was no longer heating efficiently and that the outdoor fan had been producing an unusual noise for the past few days.
On site, we discovered a typical Goodman wall-mounted model installation, discreetly placed on a metal support at the back of the house, surrounded by dense vegetation. A peaceful environment, certainly, but not always ideal for the proper functioning of an HVAC system.
Diagnosis: when nature invites itself into the system
Before any manipulation, we carried out a complete visual inspection of the external condenser. Several clues quickly caught our attention:
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Accumulation of leaves and debris inside the fan.
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Presence of branches and climbing plants too close to the coil.
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Slight oxidation on the fins due to lack of air circulation.
These conditions often cause the compressor to overheat because air is no longer circulating properly through the condenser. This causes a decrease in heat transfer capacity , making it difficult for the system to reach the desired temperature, especially in hot or humid weather.
Repair and maintenance steps performed
Once the diagnosis was made, our team began the steps to restore service :
1. Thorough cleaning of the condenser
We carefully cleared the area, trimmed nearby branches, and cleaned the condenser fins with a biodegradable cleaner designed for HVAC systems. This step restored proper airflow around the unit.
2. Checking the electrical circuit
The power connections and wiring were checked. We noticed a slightly loose contact in the junction box, which can cause intermittent false contact. This point was tightened and protected.
3. Refrigerant control
Using our digital pressure gauges, we measured the pressure of the R-410A refrigerant used in this Goodman unit. The pressure was slightly lower than normal, possibly indicating a microleak. A nitrogen gas test was performed, but no active leak was detected, suggesting a minimal loss due to the unit's age.
4. Fan and compressor test
The outdoor fan was cleaned and lubricated , then load tested. The noise initially reported by the customer was caused by a leaf stuck in the fan cage , which was rubbing against the blades. Once removed, the system returned to quiet and smooth operation .
Result: a refurbished heat pump and a satisfied customer
After fully restarting the system, we observed an immediate return to full performance . The air blown inside reached the correct temperature and the compressor maintained a stable pressure.
Before our departure, we advised the client on some good maintenance practices :
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Maintain a minimum clearance of 60 cm around the condenser.
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Clean up leaves and debris at least twice a season.
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Schedule annual professional maintenance to ensure system longevity.
We also recommended installing vibration protection and a breathable winter cover to prevent frost and weather damage.
AirGreen Expertise: a complete and preventive service
At AirGreen , we emphasize prevention before failure . This case illustrates how a heat pump's immediate environment can affect its performance. Even a unit as robust as a wall-mounted Goodman can see its performance drop if it is confined to a space overgrown with vegetation.
Our team of certified HVAC technicians operates throughout Greater Montreal, including Laval, Montreal, Longueuil, the North Shore and the South Shore , to ensure fast, professional and long-lasting service .
In summary:
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Brand and type : Goodman wall-mounted heat pump.
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Reported issue : Decreased performance, unusual noise.
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Main cause : Blockage of the condenser by vegetation.
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AirGreen Solution : Complete cleaning, tightening of connections, pressure testing, rebalancing of the system.
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Result : Complete restoration of comfort and energy efficiency.
When to call AirGreen for your HVAC system?
If your heat pump or air conditioner is showing signs of weakness— unusual noises, warm air, excessive defrosting, or increased energy consumption —it's best to call our technicians quickly . A simple inspection can often prevent costly breakdowns and extend the life of your unit.
Our services combine precise diagnostics, technical expertise, and total transparency . We prioritize lasting repairs over premature replacements, while respecting Quebec's energy efficiency standards .
AirGreen is the guarantee of restored comfort and professional HVAC service , offered by a local team dedicated to your well-being in Sainte-Dorothée and throughout Laval .