39
99B138120x-mub-en | 2014/11 | V05
EN
12
Information messages
Warning
Risk of death by electrocution!
•
Immediately disconnect the device from the mains supply when it can no longer be
operated safely, e.g. in the case of visible damage.
•
Disconnect the device from the mains power before opening the case.
•
All work on an open device must be performed by professional personnel.
Note
The controller is a quality product, conceived for years of continuous trouble-free operation.
Observe the following points:
•
Faults are often caused by connected components and not by the controller.
• The following notes on fault identification indicate the most common causes of faults.
•
Only return the controller when you are absolutely sure that none of the problems
listed below is responsible for the fault.