Service manual

9-2013 9. Troubleshooting
16. Verify that the spark plug cables are secure on the spark plugs: reconnect or replace as
necessary.
17. Inspect ignition kill lead (J1-12) in harness and at connector J1: repair or replace the lead,
terminal, or pins as necessary.
18. Measure the spark plug gap: set the gap or replace the spark plugs as necessary.
19. Verify ignition spark condition.
20. Inspect the spark plug lead, kill lead terminals at magnetos, and measure the magneto air
gap: replace the terminals, set the gap, or replace the magnetos as necessary.
21. Measure temperature of the air intake and temperature rise across the generator set;
remove blockage or prevent air recirculation.
9.26 Invalid Set Configuration - Fault Code 37
Logic: Generator set control configuration does not meet any valid configuration.
Possible Causes: Generator set configuration, control
Diagnosis & Repair:
1. Verify that the Last Fault is FC 37: Yes, continue diagnosis; No, troubleshoot actual last
fault.
2. Using the remote display, reset and save the generator set configuration.
3. If the generator set configuration is correct and the fault will not clear, replace the control.
9.27 Processor Fault - Fault Code 43
Logic: RAM (programming variables) error during self test
Possible Causes: Faulty program
Diagnosis & Solution:
1. Verify that the Last Fault is FC 43: Yes, continue diagnosis; No, troubleshoot actual last
fault.
2. Disconnect battery power to the generator set control, wait 30 seconds, and reconnect the
battery. Power up control and verify if fault code returns.
3. Replace the control.
9.28 Speed Sense Fault - Fault Code 45
Logic: While running quadrature frequency dropped to 0 Hz for 1 continuous second
Possible Causes: Loads, generator windings, wire connections
Diagnosis & Repair:
1. Verify that the Last Fault is FC 45: Yes, continue diagnosis; No, troubleshoot actual last
fault.
2. Measure quadrature winding resistance at stator leads (J1-2 and J1-3) and at the J1
connector.
A030A239 (Issue 10) 103