Troubleshooting Instructions - JLG H340AJ Service And Maintenance Manual

Troubleshooting Instructions

If a fault occurs, count the number of red flashes between
pauses and refer to the table below.
Flashes
3121634
Table 3-6. LED Flashes
Cause
Battery high voltage
Battery low voltage
Charge timeout caused by battery pack not reaching
required voltage; or charger output reduced due to high
temperatures.
Battery could not be trickle charged up to minimum
voltage.
Charger shutdown due to high internal temperature.
Internal charger fault
SECTION 3 - CHASSIS & TURNTABLE
Solution
Check battery size and condition. This fault will clear
automatically once the condition has been corrected.
Check battery size and condition. This fault will clear
automatically once the condition has been corrected.
Check connections, that battery type matches selected
charge profile and operate the charger at a lower ambi-
ent temperature. Reset the charger by interrupting AC
power for 15+ seconds.
Check for shorted or damaged cells. Reset the charger
by interrupting AC power for 15+ seconds.
Ensure sufficient cooling airflow. Reset the charger by
interrupting AC power for 15+ seconds.
Reset the charger by interrupting AC
power for 15+ seconds. Return to service depot if fault
persists.
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