How do I access diagnostics mode on my HandHeld Remote

When an error is detected on the C220 controller the Diagnostics mode on the remote can be helpful in diagnosing the fault.

To access Diagnostics mode, you must first to get into Configuration mode.

Once in Configuration mode. immediately press the square LEFT and RIGHT buttons at the same time.

If the Remote displays the error "No Link to controller", the C220 is likely not powered-on or the remote had not been matched to the C220.

This video demonstrates the process.