28
Troubleshooting
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
Temp Sensor
Replace PCB
5
Power Switch
Replace PCB
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
9
Scheduler fault
Update Software
Replace PCB
10
Coding Error
Update Software
