9
6.
Troubleshooting
To troubleshoot the Modul-Connect Battery Charger DC-DC 30A, please note the LED display and
review the “Understanding the Error Codes” in section 6.1. Also:
•
Check that the voltage at the output pins is the same as the batteries and that the polarity is
correct.
•
Check that all the fuses are OK.
•
Check LED flashes status as the power is applied to the ignition feed (brown wire).
•
If the battery charger LED flashes AMBER but the battery voltage is not increasing, wait 10
minutes and re-check your readings.
6.1
Understanding the error codes
Status LED colour Short flashes
Long flashes
Fault
Red
3
0
Force idle (check connection and fuses to chassis
battery and auxiliary battery)
Red
3
1
Starter battery voltage below 9 volts (<9V)
Red
3
2
Starter battery voltage over 36 volts (<36V)
Red
3
3
Starter battery voltage over 33 volts (<33V)
Red
3
4
Internal charge controller temperature MT over 70°C
Red
3
5
Internal charge controller temperature FT over 115°C
Red
3
7
Thermistor disconnected
Red
3
8
Damaged battery detected
