7.2 Trouble checking
The controller is quality product, conceived for years of continuous trouble-free operation. If
a problem occurs, the cause of the problem very often lies not in the controller but in the
peripheral components. The following description of some well-known problems should help
the installer and operator to isolate the problem, so that the system can be place back into
operation as quickly as possible and to avoid unnecessary costs. Of course, not all possible
problems can be listed here. However, most of the normal problems encountered with the
controller can be found in the list below, only return the controller to seller when you are
absolutely sure that none of the problems listed below is responsible for the fault.
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