17 November 2025
Rats & AC Failure: Ducted Replacement Wynnum, Brisbane
Rats & AC Failure: A Wynnum Ducted System’s Unexpected End
You flip the switch on your ducted air conditioning, expecting a rush of cool air, but… nothing happens. The silence is deafening, and the house is only getting hotter. You’re left standing there asking the big question: “why is my ducted air conditioning not working?“
This was the exact scenario for a homeowner in Wynnum, Brisbane. Their ducted system was completely unresponsive. They called the Fallon Solutions team for a ducted ac repair, hoping for a simple fix. What our technician found, however, was a perfect storm of component failures caused by one of a homeowner’s worst enemies: pests.
The Problem: A System Beyond Repair
When our licensed technician arrived, they began a comprehensive fault identification process. The system was dead, and the goal was to find out why.
The investigation quickly revealed the system wasn’t just faulty; it was critically compromised in multiple locations.
- Pest Invasion: After removing the cover on the outdoor unit, our technician found a rat nest on top of the compressor. This is a major discovery. Rodents love the sheltered warmth of AC units, but they are incredibly destructive.
- Electrical Damage: The rats had chewed and damaged some of the system’s wiring, creating a significant safety and operational fault. The main power isolator’s cover was also broken, leaving live electrical components exposed to the elements.
- Seized Indoor Motor: The bad news wasn’t just outside. An inspection of the indoor roof-space unit revealed another catastrophic failure: the indoor fan motor was completely seized. This is the “lungs” of the system, responsible for pushing the air through the ducts. When it seizes, the system is dead in the water.
This Wynnum homeowner was facing a trifecta of failures: pest damage, electrical faults, and a major mechanical breakdown.
The Solution: A Clear Diagnosis and a Fresh Start
At this point, a simple repair was off the table. Trying to fix each individual fault on a system this compromised would be unreliable and incredibly expensive—a classic case of throwing good money after bad.
The customer needed clarity and a long-term, reliable solution. Our technician’s job was to provide a complete and thorough diagnosis to justify the next steps. This is what our expert fault-finding process looks like in plain English:
- Make Safe: First, we isolated all power to the unit to make it safe to work on.
- Inspect the ‘Heart’ (Outdoor Unit):
- We inspected the “brain” (the electrical computer boards) and tested the communication connections.
- We ran advanced electrical tests (like insulation resistance tests) on the compressor—the system’s ‘heart’—to check the extent of the electrical damage from the rats.
- We disconnected and tested all key components, from the sensors (thermistors) to the outdoor fan motor.
- Inspect the ‘Lungs’ (Indoor Unit):
- We opened the indoor unit to investigate why no air was flowing.
- We tested the indoor computer boards and sensors.
- We tested the indoor fan motor, which was confirmed to be seized and non-operational.
The Verdict: With a seized indoor motor (a costly replacement) and significant, unquantifiable damage to the outdoor unit’s wiring and compressor from pests, the system was officially beyond economical repair.
We presented our findings clearly to the homeowner, explaining that the most secure and cost-effective path forward was a ducted air conditioner replacement. We provided an upfront quote for a brand-new, fully-warrantied ducted system.
Understanding the situation, the client agreed that a fresh start was the best option and booked the new installation on the spot.
The Benefits: From Uncertainty to Peace of Mind
While the news was not what they’d hoped for, the homeowner received immense value:
- A Clear Answer: They were no longer guessing “why is my ducted air conditioning not working?” They had a definitive, expert diagnosis.
- Avoided Wasted Money: Our thorough process prevented them from wasting thousands on a ducted ac repair that would have inevitably failed again.
- Long-Term Reliability: They now have a brand-new, modern system with a full manufacturer’s warranty, giving them years of reliable comfort.
- Improved Efficiency: The new system will be far more energy-efficient than their old, failing unit, which will mean lower power bills.
- Safety: The old, dangerous wiring has been decommissioned, and the new system is professionally and safely installed.
Why Choose Fallon Solutions? We Find the Real Problem
When you search for an ac repair near me, you need a team that will find the root cause, not just patch a symptom.
Our licensed Master Tradespeople are trained in complex fault identification. We have the tools and experience to test every component, from the compressor windings to the smallest thermistor. This commitment to diagnostics, as seen in this Wynnum job, ensures we provide you with the most honest, cost-effective, and long-lasting solution.
As a bonus, the client also received our 1-year complimentary membership, offering them priority service and other benefits for their new system. For more information on our air conditioning services, visit our air conditioning trade area.
Don’t Guess, Get a Real Diagnosis
If your ducted air conditioner is struggling, making strange noises, or has stopped working entirely, don’t wait for a total meltdown.
A full system failure like this Wynnum case shows that small issues (or pests!) can lead to major, costly problems. If you need a trustworthy ducted air conditioner replacement in Wynnum or a comprehensive diagnostic in Brisbane, contact the expert team at Fallon Solutions today. Call us on 1300 054 488 or send us an enquiry here.