16
3.3
Troubleshooting Chart
Isolate from all power sources prior to performing any interior verifications or part replacements.
Symptom
Possible Cause
AC Breaker Trips
(High Input Current)
Wrong AC Input Voltage
Frequency out of Range
Internal Wiring Failure
Defective Component on Heatsink Assembly
AC MAINS Fail Alarm
No AC Power Connected
Incorrect Input AC Voltage Tap Setting
DC Breaker Trips
(High Output Current)
Internal Wiring Failure
Incorrect Battery Connected
Shorted Output Cables
Shorted Battery Cells or Customer Equipment
Defective Component on Heatsink Assembly
No Display and No LEDs
Internal Wiring Failure
Defective Display Driver Board (S2A-348)
Defective Control Board (S2A-382)
Failed LED Test
Defective LEDs
Defective Display Driver Board (S2A-348)
Meter Reading Incorrect
Voltage or Current
Internal Wiring Failure
Defective Shunt
Defective/ Incorrect Settings on Control Board (S2A-382)
Pot Misadjustment
Charger Running Hot
Inadequate Ventilation
Ambient is Too Hot
Battery Power Demand Too Great
Battery Temperature Too
High
Ambient is Too Hot
Shorted Battery Cell(s)
Float/Equalize Voltage Set Too High
Battery needs to be Equalized
Low Output Voltage
or Current
Float/Equalize Voltage Incorrectly Set
Charger is in Current Limit
Tripped/Defective DC Breaker
Defective Control Board (S2A-382)
Defective Component on Heatsink Assembly
High Output Voltage
or Current
Float/Equalize Voltage Incorrectly Set
Defective Control Board (S2A-382)
Defective Component on Heatsink Assembly
Erratic Operation
Defective Control Board
Internal Wiring Failure
Defective Component on Heatsink Assembly
Lack of Maintenance
High Ambient Temperature
