TP-6398 4/07 29Section 4 Troubleshooting
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 Solution
Red LED stays on for
more than 24 hours.
One or more defective 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. 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.
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 defective or damaged battery cells. Replace the battery.
Extremely low AC voltage at the battery charger. Contact an authorized distributor/dealer.
Green LED stays on
when the battery is
knowntobelow.
Open DC output fuse. Replace AGS-10 fuse.
Faulty or contaminated terminal connections. Clean and tighten or repair all terminal connections.
One or more defective or damaged battery cells. Replace the battery.
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 4-2 Battery Charger Troubleshooting
To Next Page
Loading...
Need help?
General
