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2.1.9 Charge Indications
The following indications are not necessarily a result of a charger problem. They are typically caused by
external problems such as AC line, poor battery conditions, connections, etc. If abnormal charge conditions are
detected, the charge is terminated, the red fault LED lights and the display shows:
DISPLAY DESCRIPTION POSSIBLE CAUSE
F0
SHORTED
CELL
#.##VC
##:##HM
Battery voltage did not reach 2.00 V/C within 30
minutes. #.##VC is the volts per cell at end of charge
and ##:##HM is the charge time.
- Shorted Cell
- Open diode
- Low Charging amps
- Low AC line voltage
- Wrong size battery
- Battery over-discharged
F1
SHORTED
CELL
#.##VC
##:##HM
Battery did not reach gassing voltage within the
allowable time. #.##VC is the volts per cell at end of
charge and ##:##HM is the charge time.
- Shorted Cell
- Open diode
- Low Charging amps
- Low AC line voltage
- Wrong size battery
- Battery over-discharged
F3 LOW
VOLTS
###A
#.##VC
Low battery voltage, less than 1.60 V/C at start up.
###A is the charger current and #.##VC is the battery
volts per cell.
- Wrong size battery
- Battery over-discharged
- Voltage jumper setting incorrect
F4 HIGH
VOLTS
###A
#.##VC
High battery voltage, more than 2.40 V/C at start up.
###A is the charger current and #.##VC is the battery
volts per cell.
- Wrong size battery
- Battery fully charged
- Voltage jumper setting incorrect
F5 NO DC
CURRENT
###A
#.##VC
No charging current to the battery. ###A is the current
at the end of charge and #.##VC is the volts per cell at
end of charge.
- Faulty AC line contactor
- Open diode
- Faulty resonant capacitor
- Poor battery connections
- Open cell
- Faulty control board
F6
- Incorrect control setup
F7 LONG
CHARGE
#.##VC
##:##HM
Long charge, the charger ran longer than the allowed
time. #.##VC is the volts per cell at end of charge and
##:##HM is the charge time.
- Open diode
- Low Charging amps
- Low AC line voltage
- Wrong size battery
- Battery over-discharged
F8
CHARGER
ON
###A
#.##VC
Charger stayed on when control requested it to shut off.
###A is the charger current and #.##VC is the battery
volts per cell.
- AC line contactor stuck on
- Open shunt sense lead or loose connection
- Incorrect control setup
- Missing or damaged current sensor
- Faulty control board
F9 BAD
KEYPAD
###A
#.##VC
Faulty keypad detected. One or more buttons are stuck
on. ###A is the charger current and #.##VC is the
battery volts per cell.
- Faulty keypad
- Faulty control board
F10 HIGH
CURRENT
###A
#.##VC
Charging current exceeds 110% of shunt setting. ###A
is the current at the end of charge and #.##VC is the
volts per cell at end of charge.
- High charging amps or high AC line voltage
- Missing or damaged current sensor
- Incorrect shunt size
- Open shunt sense lead or loose connection
- Faulty control board