Troubleshooting And Failure Codes - DieHard 28.71225 Operator's Manual

15.

trouBlEShootinG And FAilurE CodES

FAilurE
CodE
Battery failed to get over 10V
F01
within 2 hours.
Battery could not be
F02
desulfated.
Battery failed to charge
F03
completely.
The charger was unable to
F05 keep the battery fully charged
in maintain mode.
The charger detected that the
F06 battery may be getting too hot
(thermal runaway).
If you get a failure code, check the connections and settings and/or replace the battery.
proBlEM
No reading on the digital
display.
Digital Display reads LO when
testing the alternator.
Digital Display reads HI when
testing the alternator.
Battery clips do not spark when
touched together.
The charger is making an
audible clicking sound.
Charger makes a loud buzz
or hum.
dESCription
poSSiBlE CAuSE
Charger is not plugged in.
No power at the receptacle.
The alternator output is 13.2
volts or less.
The alternator output is 14.6
volts or more.
The charger is equipped with
an auto-start feature. It will not
supply current to the battery
clips until a battery is properly
connected. Unlike traditional
chargers, the clips will not
spark if touched together.
Circuit breaker is cycling.
Battery is defective.
Severely discharged battery,
but otherwise it is a good
battery.
Transformer laminations vibrate
(buzz).
Shorted Diode Assembly or
Output Rectifier Assembly
(hum).
Could be caused by either a bad battery or trying to
charge a 6V battery on the 12V setting.
The desulfation process could not be completed –
battery is bad.
Could be caused by a bad battery or trying to charge
a large battery or bank of batteries on too low of a
current setting.
The battery won't hold a charge. Could be caused
by a drain on the battery or the battery could be bad.
Make sure there are no loads on the battery. If there
are remove them. If there are none, have the battery
checked or replaced.
The charger automatically shuts the current off if
it detects the battery may be getting too hot or the
battery may have a shorted cell. Have the battery
checked or replaced.
10
• •
CAuSE
rEASon/Solution
Plug the charger into an AC
outlet.
Check for open fuse or circuit
breaker supplying AC outlet.
Have the electrical system
checked by a qualified
technician.
Have the electrical system
checked by a qualified
technician.
No problem; this is a normal
condition.
The settings may be wrong.
Check the charger settings.
Have the battery checked.
The battery may not want to
accept a charge, due to a
run-down state. Allow charging
to continue until battery has a
chance to recover sufficiently
to take a charge. If more than
20 minutes, stop charging and
have the battery checked.
No problem; this is a normal
condition.
Have charger checked by a
qualified technician.