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How do I retrieve a fault code from a wireless infra-red controller?

This needs to be done by pressing and hold the check button on the back of the controller sometimes located under the batteries. Once you do this you then scroll through various codes which will indicate the fault code to you.

1. Infra-red Remote Controller Fault Codes
2. Infra-red Remote Controller Fault Codes

How can I change the system configuration settings using the wired controller?

A number of items are configurable by the wired controller. If an indoor unit without a wired controller requires configuration, it may be temporarily connected for the procedure to be undertaken. Great care must be exercised when changing configuration settings. Do not attempt to change settings beyond those detailed in the data manuals provided.