Engine Failed to Crank
engine
Description
Diesel Engine mode only: the engine failed to crank after 2 attempts, and the unit shuts down.
Activation Conditions
Not for Shore Power mode If the system is in Diesel Engine mode AND engine fails to crank after two attempts. Alternator feedback input presence shall be checked.
Unit Behavior
If the system is in Diesel Engine mode, REQUIRED SHUTDOWN If the system is in Shore Power mode and the alarm is active, Alarm Condition only
Reset Conditions
Alarm Reset OR Cycle Power
Corrective Actions
1. Check Starting Sequence a. Check to see if engine starts, runs for a few seconds then shuts off. b. If NO, continue with Step 2. If YES, check alternator feedback circuit. Refer to procedure for alarm A5002 Check Alt enable circuit. 2. Check Fuses - Check F1 fuse. Verify correct fuse and check fuse holder for damage. Replace fuse as required. Clear alarms, restart and check for repeat alarm(s). 3. Check Starter Solenoid Circuit a. Start APU from AI. After buzzer sounds, check for power at starter solenoid and APU J2-3. If there is not a minimum of 11 VDC, check connectors and wiring between terminals for damage, moisture or corrosion. Inspect wiring to starter motor. b. Verify there is no physical damage to wiring or battery cable end, and no damage or corrosion in connections. 4. Check Starter a. Inspect starter and wiring. Verify there is no damage or corrosion. Wiring and battery cable must be clean and tight. b. Check voltage to starter motor. Must be above 10 VDC while cranking. c. Check resistance of starter motor. d. Refer to Section 2.11 for specifications. e. Check amperage draw of starter. f. Refer to Section 2.11 for specifications. 5. Check Battery Voltage a. Inspect cable ends and posts. Must be clean and tight, with no corrosion. b. Test voltage at battery with unit off. Must have minimum 11 VDC. c. Perform load test on battery. Follow battery manufacturer’s procedure. 6. Check APU Module and Fuel Solenoid (FS) a. Check voltage from fuse F1 through APU J2-1. Must have minimum 11 VDC with the battery connected. b. Check for ground at APU J1-5. If ground is not good, check connectors and wiring between terminals for damage, moisture or corrosion. c. Inspect fuel solenoid (FS) and APU Module connector pins and terminals. Verify there is no physical damage to components, and no damage or corrosion in connectors. d. Check resistance & amp draw of FSA. Refer to Section 2.11 for specifications. e. Check FSA plunger. Must move in and out freely. Refer to engine manual. 7. Check for Correct Engine Oil - Check viscosity is correct for ambient conditions.