Express
®
EnCore™
Owner’s Manual
I.B. 1660
29
Fault
Critical
Cause
Solution
TH
or
TH-Amb
Yes
Charger overheating
Check that fans are working.
Verify that ambient temperature is not
too high – above 113° F (45° C).
Inspect to see if charger ventilation is
obstructed or impaired.
No
Low battery electrolyte
Check battery electrolyte level.
WATER
LEVEL
Yes
Critical battery electrolyte
Check battery electrolyte level.
BAT TEMP
Yes
Battery temperature reached
maximum level.
Allow battery to cool down.
MOD TH
No
Alternating with charge
parameters – one or more
module in thermal fault – the
charge process continues –
the fault module(s) is(are)
dis red led flashing.
Check that the fan(s) is (are) working
correctly and/or that the ambient
temperature is not too high or whether
there is poor natural ventilation to the
charger.
If all modules are in thermal fault a TH
fault will follow.
DFMOD
No
Alternating with charge
parameters – one or more
module in DF1 fault – the
charge process continues –
the fault module(s) is (are)
dis red led flashing.
Check power modules.
If all modules in DF1 fault a DF1 error
will follow.
DEF ID
Yes
Blocking fault – one or more
modules are not compatible
with the charger
configuration (for example
24 V charger with one 48 V
module). This can happen if
the user replaces one
module with another one
with a different voltage
setting.
Use correct module(s).
No
Battery balance fault
Check battery cell voltages.
