23
4.3 Troubleshooting
Chart
Symptom
Possible Cause
Wrong AC Input Voltage
AC Input Taps on Power Transformer are Incorrectly Set
Incorrect, Damaged or Loose Cable/Harness Connections
DC Output Too High
Defective Component on Heatsink Assembly
Incorrect, Damaged or Loose Cable/Harness Connections
Incorrect Battery Connected
Shorted Output Cables
Shorted Battery Cells or Customer Equipment
Defective Component on Heatsink Assembly
No AC Voltage Applied to Charger
Charger AC Breaker Opened
Incorrect, Damaged or Loose Cable/Harness Connections
Defective Display Membrane
Defective Display Driver Card (S2A-225C)
Defective Power Supply Card (S2A-360S)
Defective Display Driver Card (S2A-225C)
Defective Control Card (S2A-362)
Defective LEDs
Incorrect, Damaged or Loose Cable/Harness Connections
Incorrect Potentiometer Settings on Control Card
Defective Shunt
Defective Control Card (S2A-362)
Inadequate Ventilation
Ambient is Too Hot
Insufficient Cool Down Between Charges
Battery Power Demand Too Great
Battery Needs to be Equalized
Defective Control Card (S2A-362)
Incorrect, Damaged or Loose Cable/Harness Connections
Defective Component on Heatsink Assembly
Moisture Inside Cabinet
Lack of Maintenance
High Ambient Temperature
Float/Equalize Voltage Potentiometers Incorrectly Set
Charger is in Current Limit
Defective Control Card (S2A-362)
Defective Component on Heatsink Assembly
Float/Equalize Voltage Potentiometers Incorrectly Set
Defective Control Card (S2A-362)
Defective Component on Heatsink Assembly
Erratic Operation
Meter Reading Incorrect
Voltage or Current
Low Output Voltage
or Current
No Display and No LEDs
Failed LED Test
Unit Running Hot
Battery Temperature Too
High
AC Breaker Trip Immediately
(High Input Current)
DC Breaker Trip Immediately
(High Output Current)
High Output Voltage
or Current
