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Fault Finding

Air Cooled Split & Packaged Systems

Outdoor Unit Controllers (OUC's) with diagnostic indicators are included on some older temperzone models to assist you in identifying faults.
Newer models with UC6, UC7 or UC8 Controllers have Fault Finding information elsewhere on the Tech Info page. Before placing a Fault Enquiry with temperzone, complete a Unit Fault Report which will provide information to assist us in pinpointing your problem.

Additional Documents

Unit Fault Report: Download PDF

Fault Finding by System Pressure: Download PDF

General Fault Finding: Download PDF

Note: The information provided on this page is accurate to the best of our knowledge at the time of publishing and is subject to revision at any time. Temperzone welcomes feedback that could improve, correct or expand the information provided in the above documents: Contact us.

Service Tools App

A 'Temperzone Service Tools' app for smart phones is available to help diagnose problems. It is a free dowload from the App Store® or Google Play®. For desktop/laptop use, visit

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