PTO
™
MOD
3
Owner’s Manual
AM-HPTOM3-OM
Rev AB February 2020
25
FAULT CODES
In case of a fault, one of the corresponding fault codes listed below will appear on the display. If it is a critical fault, charging will stop
and the red Fault LED will be illuminated.
Fault
Cause
Solution
DF1
Low output current
Check input voltage and fuses.
Call for service.
DF2
Output fault
Check for proper battery connection (reversed
polarity). Check output fuse. Call for service.
DF3
Improper battery
Battery voltage too high (>2.4 Vpc)
or too low (<1.8 Vpc). Use proper charger
for battery. Check Batt Cells in Setup.
DF4
The battery has been
discharged more than
80% of its capacity
Prevent battery over discharging.
Battery charge gauges and lift interrupts may need
calibration.
DF5
Start time with full start rate
current applied or charge
cycle taper and finish time is
exceeded.
Check the battery temperature.
Check the configuration in the menu (charge cable
parameters).
Check that the battery is the correct cell size for
the charger.
DF6
Occurs when the overall
charge cycle time limit is
exceeded (14 Hrs).
Check the battery temperature.
Check the configuration in the menu (charge cable
parameters).
Check that the battery is the correct cell size for
the charger.
DF7
CHK BATT
Check battery (temperature, gravity, etc).
Check the battery operation.
Check cable parameters in Charger Config menu.
DFMx
One or more module in fault
– the charge process
continues
– the fault
module(s) is (are) displayed
+ red led flashing.
Check power modules. If all modules in DF1 fault,
a DF1 error will follow.
Call for service.
