Lifetech LTC1 - Fault Codes and Troubleshooting; Fault Display Screen; Fault Code Definitions

LIFEtech™MOD1C
Owner’s Manual
AM-HLTMC-OM
Rev AA January 2018
28
Fault Codes
Fault Display
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
Critical
Cause
Solution
DF1
Yes Low output current
Check input voltage and fuses. Call
for service.
DF2
Yes Output fault
Check for proper battery connection
(reversed polarity). Check output fuse.
Call for service
DF3
Yes Improper battery
Battery voltage too high (>2.3 Vpc) or
too low (<1.6 Vpc). Use proper
charger for battery.
DF4
No
The battery has been
discharged more than 80%
of its capacity
Prevent future over discharging of
battery. Battery charge gauges and lift
interrupts may need calibration.
DF5
No Battery requires inspection
Non critical fault. Check battery cables
for condition and size, check for loose
connections, check for defective cells.
TH
Yes Charger overheating
Check that fans are working. Verify
that ambient temperature is not too
high. Inspect to see if charger
ventilation is obstructed or impaired.
No Low battery electrolyte Check battery electrolyte level.
24V 35A U1.3