The LED indicator light informs you about the status of the unit.
See document for color meaning.
Please refer to this document if your unit won’t start or top.
Refer to this document for the steps you need to follow to reset your PC board.
If your unit surges, you must follow these steps to find the problem.
Refer to this document for the steps to resolve the problem.
This must be because the piping installation was reversed.
Please refer to this document for more information on how the piping network must be installed.
If your unit doesn’t start or stop, please look at this document to see the possible problem.
This happens when the vacuum is not properly mounted.
Please, refer at the document below to see how to correctly mount your vacuum.
Please refer to this document below which explains when your LED light changes color, what it means, and what action should be taken.