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Multi Switch
37
Troubleshooting
Flash codes
When a fault occurs the LED will start to flash. There is a long delay
and then a number of flashes with a short delay. Count the number
of flashes and look up the according code in the table below.
Flash
Count
Reason
Required action
1
-
-
2
-
-
3
Power Supply, Under/Over
voltage
Check power connections
and power cable
4
Sensor
Replace PCB
5
-
-
6
ADC
Internal Analog to Digital
Converter
Replace PCB
7
Test Flag failed or diagnostic
failed
Redo tests
Replace PCB
8
CPU fault
Replace PCB