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Ducted Gas Breakdown Resolved in Young
Job summary
A ducted gas system fault in Young presented with Fault 10, over-temperature, and Fault 16, supply air thermistor fault. The Braemar heating system was inspected, the return air filter cleaned, and the fan motor capacitor replaced before operational testing was carried out.
Customer report
The customer reported a ducted gas breakdown in Young, with the controller showing Fault 10 and Fault 16. The system was not running normally and the fan motor was not operating when inspected. The return air filter was found to be completely blocked, and the unit required fault finding before it could be returned to service.
Diagnosis & technical assessment
The Braemar heating system was inspected after a ducted gas breakdown report. The controller faults indicated an over-temperature condition and a supply air thermistor fault, which aligned with restricted airflow at the unit. The return air filter was found to be completely blocked, creating a severe airflow restriction. The fan motor was not operating, so the motor circuit was checked further. The fan motor capacitor was tested and found to be out of specification. The fan motor start and run windings were also tested, and the resistance readings were within specification, which pointed away from a winding failure and toward a capacitor-related start issue.
This job record is derived from first-party technician notes and internal job management systems (SimPRO).
Solutions delivered
The return air filter was removed and cleaned to restore airflow through the system. The faulty fan motor capacitor was replaced with a new 15 µF capacitor because testing showed it was outside specification. The unit was then reassembled, power was restored, and the system was operated to confirm correct fan motor function. The repair addressed both the airflow restriction and the failed capacitor that was preventing proper motor operation.
Tools, parts & systems used
- 15 µF capacitor
- Braemar heating system
- ducted gas system
Outcome & results
The fan motor was operating correctly after the repair, and the system was no longer entering fault mode. The unit functioned as intended after cleaning, reassembly, and operational testing. The site was left clean and tidy following completion of the work.
All work was carried out in accordance with relevant Australian Standards and manufacturer requirements.
This job record is derived from first-party technician notes and internal job management systems (SimPRO).
Repair vs replacement
In ducted gas repairs, replacement is usually chosen when a component tests outside specification and repair would not restore normal operation. Cleaning is appropriate where airflow is restricted by contamination and the component remains serviceable. In this job, the filter was cleaned because it was blocked, while the fan motor capacitor was replaced because testing showed it was out of specification. The motor windings remained within specification, so a full motor replacement was not indicated by the test results.
If a heating, cooling or refrigeration system shows signs of a fault, such as burning smells, water leaks or tripping power, switch it off where safe and contact a licensed technician.