Lofa CANplus 600 Operation Manual - page 25
600 Control Panel Operation and Troubleshooting
463-3000-07 Initial - 24-Jul-2007
25
General Troubleshooting
For additional information, refer to engine manufacturer troubleshooting guide.
No response from starter motor
Possible Cause
Possible Remedy
No battery voltage to starter
Verify wiring and battery connection (power and ground)
Battery discharged
Charge or replace battery, verify alternator charging
Tripped overcurrent protection
Correct fault, replace or reset overcurrent protection
No signal from control system
No power to control system (see Control System Troubleshooting)
Defective starter solenoid
Replace starter solenoid
Defective starter motor
Replace starter motor
Engine will crank but not start
Possible Cause
Possible Remedy
Engine not getting fuel
Check fuel level, filter, fuel pump, verify no air in fuel lines
ECU is not functioning
See Engine Troubleshooting
Tripped overcurrent protection
Correct fault, replace or reset overcurrent protection
No preheat (cold condition)
See Preheat Troubleshooting
Engine runs and shuts down
Possible Cause
Possible Remedy
ECU shutdown
Use display to view ECU diagnostic codes, use ECU diagnostic tool for
more detailed information
Circuit overload protection
tripped
Correct overload, keep control system from overheating
(over 167° F or 75° C)
Voltage transients (spikes)
Add suppressor diodes, protect from nearby lightening strikes, shield
induced spikes from other equipment, add electric motor control relay
Defective control system
See Control System Troubleshooting
Alternator not charging battery
Possible Cause
Possible Remedy
Broken or slipping alternator
drive belt
Adjust or replace alternator drive belt
Alternator not excited
Verify excitation circuit connected, replace faulty regulator
Alternator output not
connected
Install charge wire
Alternator not grounded
Clean or add ground connection
Alternator faulty
Replace faulty alternator