Kohler 12RESL, Operation Manual, Page: 41 / 48

TP-6517 1/11 41 Section 5 Troubleshooting
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 Solution
Red LED stays
on for more
than 24 hours One or more inoperative or damaged cells. Load test the battery and replace, if necessary
Battery charger has reduced its output voltage
below the normal level due to a DC overload or
a DC short. 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.
Onboard DC systems are drawing more
current than the battery charger can replace. Turn off all DC equipment while charging.
Red and green
LEDs stay on
for more than
24 hours Onboard DC systems are drawing between
1.5 and 5 amps. Turn off all DC equipment while charging.
One or more inoperative or damaged cells. Load test the battery and replace, if necessary
Extremely low AC voltage at the battery
charger. Apply a higher AC voltage source or reduce the length of
the extension cord.
Green LED
stays on when
the battery is
known to be
low Open DC output fuse. Replace AGS-10 fuse.
Faulty or contaminated terminal connections. Clean and tighten or repair all terminal connections.
One or more inoperative or damaged cells. Load test the battery and replace, if necessary.
Neither of the
LEDs turn on
when the AC
power is
applied No AC power available at the battery charger. Connect AC power or reset the AC breaker on the main
panel.
Component failure. Replace battery charger.
Figure 5-3 Battery Charger Troubleshooting