![background image](http://html.mh-extra.com/html/stertil-koni/st-1082-fs/st-1082-fs_installation-operation-and-maintanance-instructions_1375431052.webp)
Operating instructions (Version F)
52
ST 1082 & ST 1100
The control system monitors the phase sequence and the presence of 3 phases
during start-up. The red light (FAULT) will be lit on the front panel when a phase error
occurs.
The microprocessor card has a 2x7 segment display which specifies a fault; the
related code specifies the type of fault (see
Table 7.1 "Error codes" on page 53
Open the front panel of the control box to see the 2x7 segment display.
Figure 7.1
Location on the display which specifies an error or fault