Battery Charger Troubleshooting - Kohler 12RESM1 Manual

4.4 Battery Charger
Troubleshooting
Use the battery charger's LED indicators and the table in
Figure 4-2 to troubleshoot battery charger operation
problems.
Problem Cause
Red LED stays on for One or more defective or damaged cells.
more than 24 hours.
Battery charger has reduced its output voltage
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 LEDs Onboard DC systems are drawing between 1.5
stay on for more than
and 5 amps.
24 hours.
One or more defective or damaged battery cells.
Extremely low AC voltage at the battery charger.
Green LED stays on Open DC output fuse.
when the battery is
Faulty or contaminated terminal connections.
known to be low.
One or more defective or damaged battery cells.
Neither of the LEDs No AC power available at the battery charger.
turn on when the AC
power is applied.
Component failure.
Figure 4-2 Battery Charger Troubleshooting
TP-6398 4/07
Solution
Load test the battery and replace, if necessary
Remove the source of the overload or short. To test, discon-
nect 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.
Replace the battery.
Contact an authorized distributor/dealer.
Replace AGS-10 fuse.
Clean and tighten or repair all terminal connections.
Replace the battery.
Connect AC power or reset the AC breaker on the main
panel.
Replace battery charger.
Section 4 Troubleshooting 29