4.3L V-6 Engine

• UNIT NOT IN AUTO LED
  Fix: 7. Indicates AUTO/OFF/MANUAL switch is in the OFF position which will prevent automatic starting if an automatic transfer switch is used. Move the AUTO/OFF/MANUAL switch to the AUTO position for automatic starting.
• Low Fuel LED 11
  Fix: Check fuel supply and replenish as required.
• UNIT WILL START THEN FAIL High Water Temperature light lit
  Fix: Low water level in radiator. Thermostat closed. Broken fan belt. Restricted flow through radiator. Ambient temperature too high. Defective temperature switch.
• Unit Running but Starter does not disengage
  Fix: Starter drive could be hanging up or the solenoid on starter is not disengaging.
• UNIT KS Voltage on Terminal #2 while Unit does not start.
  Fix: Check for voltage source. There should be no voltage present.
• Terminal #5 Unused Terminal not connected to KASSEC Terminal #9, ground.
  Fix: Connect Terminal #5 when in use or it may prevent unit from starting.
• Press To Test Button 13
• PRE-HI ENGINE TEMP LED. Engine continues to operate
  Fix: 1. Indicates engine has begun to overheat and engine temperature has risen approximately 215°F (105°C). If generator is powering non-critical and critical loads and cannot be shut down. a. Reduce load if possible by turning off non-critical loads. b. Check air inlets and outlets and remove any obstructions to airflow. c. Open doors or windows in generator area to increase ventilation. 2. If engine can be stopped, follow procedure i in Step 2.
• PRE LOW OIL PRESSURE LED. Engine continues to operate
  Fix: 3. Indicates engine oil pressure has dropped to 20 psi (138kPa). If generator is powering critical loads and cannot be shut down, wait until next shutdown period and then follow Step 4 procedure. If engine can be stopped, follow procedures in Step 4.
• Overspeed light lit
  Fix: Lost governor control. Defective overspeed switch.
• Overcrank light-lit
  Fix: Lost signal on Mag Pickup Crank Disconnect Terminal or lost signal on Auxiliary Crank Disconnect terminal after unit started.
• OVERCRANK LED. Engine stops cranking
  Fix: A. Check for empty fuel tank, fuel leaks, or plugged fuel lines and correct as required. b. Check for dirty fuel filter and replace if necessary (See Maintenance section of Engine Manual). c. Check for dirty or plugged air filter and replace if necessary (See Maintenance section of Engine Manual). d. Refer to Step 4. e. Reset the control and restart after correcting the problem. Contact your Dealer or Distributor for service if none of the above.
• Overcrank LED 17
  Fix: Check for empty fuel tank, fuel leaks, or plugged fuel lines and correct as required. Check for dirty fuel filter and replace if necessary (See Maintenance section of Engine Manual). Check for dirty or plugged air filter and replace if necessary (See Maintenance section of Engine Manual).
• No Engine Stop. 29
  Fix: Check Engine Start Timer setting. Check Engine Start Connections. Investigate why the Engine Control Switch was put in Manual. Contact your Dealer or Distributor for assistance.
• No Engine Start. 28
  Fix: Check Engine Start connections. Investigate why the Engine Control Switch was put in Manual. Contact your Dealer or Distributor for assistance.

Compiled from service & troubleshooting documentation across every generator set that uses the 4.3L V-6.

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.