Kohler 8.5RES, 12RES manual Fault Codes, 4.5Battery Charger Troubleshooting

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 2.4.1.

4.5Battery Charger Troubleshooting

Use the battery charger’s LED indicators and the table in Figure 4-3 to troubleshoot battery charger operation problems.

4.4 Troubleshooting

Figure 4-2 contains troubleshooting, diagnostic, and repair information for the Advanced Digital Control.

Problem	Possible Cause	Corrective Action
Controller LED display	No power to the controller:
is off	Continuous power mode jumper is disconnected	Controller display will automatically activate when a remote
	and the generator set has not run for 48 hours or	start command is received or the generator set master
	longer.	switch is moved to the RUN position. See Section 2.5.
		Connect the jumper to maintain continuous power to the
		controller, if desired.
	Controller fuse (F3) is blown.	Replace the fuse. If the fuse blows again, contact the
		distributor/dealer.
	Low or no battery voltage.	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
	position.	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 ADC 2100 Troubleshooting Chart

Problem	Cause	Solution
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
	One or more defective or damaged cells.	Load test the battery and replace, if necessary
24 hours
	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
	Faulty or contaminated terminal connections.	Clean and tighten or repair all terminal connections.
battery is known
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 Section 4 Troubleshooting TP-6331 5/04