Fault Codes; Controller Troubleshooting; Battery Charger Troubleshooting - Kohler 12RES Operation And Installation Instructions Manual

4.3 Fault Codes
The Advanced Digital Control displays fault codes to aid
in troubleshooting. Fault codes, descriptions, and
recommended actions are listed in Figure 2-3.
Identify and correct the cause of the fault condition.
Then reset the controller after a fault shutdown. See
Section 2.3.5.
4.5 Battery Charger
Troubleshooting
Use the battery charger's LED indicators and the table in
Figure 4-3 to troubleshoot battery charger operation
problems.
4.4 Controller Troubleshooting
Figure 4-2 contains troubleshooting, diagnostic, and
repair information for the Advanced Digital Control.
Problem
Controller LED display
is off
Possible Cause Corrective Action
No power to the controller:
Continuous power mode jumper is disconnected
and the generator set has not run for 48 hours or
longer.
Controller fuse (F3) is blown.
Low or no battery voltage.
Controller display will automatically activate when a remote
start command is received or the generator set master
switch is moved to the RUN position. Connect the jumper
to maintain continuous power to the controller, if desired.
See Sections 2.3.6 and 6.9.3.
Replace the fuse. If the fuse blows again, contact the
distributor/dealer.
Check connections.
Check generator set battery and battery charger. See
Figure 4-1.
Generator set master switch is in the OFF/RESET Move generator set master switch to the AUTO or RUN
)osition. position,
Generator set master switch in AUTO but no start No action required (see Section 2.3.1). Controller display
command has been received since last controller will activate when a remote start command is received or
reset, the generator set master switch is moved to the RUN
position, Use the remote switch to start generator set and
activate the controller display, if desired.
Figure
4-2
Controller Troubleshooting
Chart
Problem Cause _,olution
Red LED stays One or more defective or damaged cells. Load test the battery and replace, if necessary
on for more than Battery charger has reduced its output voltage below Remove the source of the overload or short. Disconnect the
24 hours
the normal level due to a DC overload or a DC short, 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 Turn off all DC equipment while charging.
the battery charger can replace.
Red and green Onboard DC systems are drawing between 1.5 and Turn off all DC equipment while charging.
LEDs stay on for 5 amps.
more than
24 hours One or more defective 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 Open DC output fuse. Replace AGS-10 fuse.
on when the
battery is known Faulty or contaminated terminal connections. Clean and tighten or repair all terminal connections.
to be low One or more defective or damaged cells. Load test the battery and replace, if necessary.
Neither of the No AC power available at the battery charger. Connect AC power or reset the AC breaker on the main panel.
LEDs turn on
when the AC Component failure. Replace battery charger.
power is applied
Figure 4-3 Battery Charger Troubleshooting
20 Section4 Troubleshooting TP-6195 1/04