Battery Charger Troubleshooting - Kohler 18RESNT Operation

5.4 Battery Charger
Troubleshooting
Use the battery charger's LED indicators and the table in
Figure 5-3 to troubleshoot battery charger operation
problems.
Problem Cause
Red LED stays One or more inoperative or damaged cells.
on for more
Battery charger has reduced its output voltage
than 24 hours
below the normal level due to a DC overload or
a DC short.
Onboard DC systems are drawing more
current than the battery charger can replace.
Red and green
Onboard DC systems are drawing between
LEDs stay on
1.5 and 5 amps.
for more than
One or more inoperative or damaged cells.
24 hours
Extremely low AC voltage at the battery
charger.
Green LED Open DC output fuse.
stays on when
Faulty or contaminated terminal connections.
the battery is
known to be
One or more inoperative or damaged cells.
low
Neither of the No AC power available at the battery charger.
LEDs turn on
when the AC
power is
Component failure.
applied
Figure 5-3 Battery Charger Troubleshooting
TP-6517 4/09
Solution
Load test the battery and replace, if necessary
Remove the source of the overload or short. Disconnect
the battery charger's black (NEGATIVE) ring terminal
from the battery. Reapply AC power and the green LED
only should now light.
Turn off all DC equipment while charging.
Turn off all DC equipment while charging.
Load test the battery and replace, if necessary
Apply a higher AC voltage source or reduce the length of
the extension cord.
Replace AGS-10 fuse.
Clean and tighten or repair all terminal connections.
Load test the battery and replace, if necessary.
Connect AC power or reset the AC breaker on the main
panel.
Replace battery charger.
Section 5 Troubleshooting 43