Generac

2678

UnclassifiedFuel

What This Code Means

Governor in open position for greater than one second; Command and position feedback not matching or taking too much time to achieve; Governor in closed position (commanded otherwise) for greater than one second; No message received for 1 second on CAN bus during startup; 12/24V Battery Type system mismatch; No response from I/O Extender 1 for 3 seconds; No response from I/O Extender 2 for 3 seconds; No response from I/O Extender 3 for 3 seconds; No response from I/O Extender 4 for 3 seconds; External Charger Fail digital input is True for 3 seconds while External Charger is enabled; Low fuel level switch triggered for 1 minute; Fuel Level is less than 10%

Possible Causes

  • •Governor wire loose
  • •Governor module
  • •Problem with CAN bus interface
  • •Dealer Config and the Digital Input for confirming a 12/24 V Battery Type system mismatch
  • •Loss of communication with I/O Extender 1
  • •Loss of communication with I/O Extender 2
  • •Loss of communication with I/O Extender 3
  • •Loss of communication with I/O Extender 4
  • •External Charger Failure
  • •Low fuel level (sensor triggers at 20% fuel remaining)
  • •Extremely Low Fuel Level

Suggested Actions

  1. 1Test 68 – Check Actuator and Mixer Function page 163
  2. 2Test 106 – Test CAN bus Communication page 174
  3. 3Confirm battery type settings
  4. 4Inspect RS-485 wiring/terminating jumper on I/O
  5. 5Confirm external charger settings on controller menu
  6. 6Check external battery charger
  7. 7Check Fuel Level

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