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-21-
No.EX
※※
-OMV0023
Troubleshooting and Maintenance
○Troubleshooting chart
When any malfunction is observed, it is recommended to perform the following troubleshooting.
SI unit
malfunction
SI unit
ST LED is OFF
SI unit
PWR (V) LED is OFF
SI unit
L/A LED is OFF
Refer to fault
No.2
SI unit
ST LED is red ON
Refer to fault
No.1
Refer to fault
No.3
Refer to fault
No.4
Yes
No
All valves and
valve LEDs are not
operating
Group of valves
not working
Valves do not
work but valve LEDs
are operating
SI unit
S/E LED is red ON
SI unit S/E LED
is green flashing
Refer to fault
No.5
Refer to fault
No.6
Refer to fault
No.7
Refer to fault
No.8
Refer to fault
No.9