Generac

1206

UnclassifiedCooling

What This Code Means

External display board is not able to communicate with main board; Main board does not see communication from display board; Overcrank; Low to no fuel pressure while cranking; Overspeed (Over 72 Hz for three seconds); Throttle stuck open; Overspeed (Over 75 Hz for one second); Total loss of control; High temperature (Coolant temp greater than 246 ºF (119 ºC) for 1 second); Overcrank alarm; Overspeed (Over 72 Hz for three seconds with the throttle stuck open); Overspeed (Over 75 Hz for one second with the throttle stuck open, total loss of control); Low oil pressure while running

Possible Causes

  • •Internal Harness Loop Broken (internal to the display board)
  • •Internal harness connecting external display board to main board has become disconnected
  • •Engine/Starter Problem
  • •No Fuel Pressure
  • •Stuck throttle
  • •Air Flow Impeded / Flow Issue
  • •Flow issue
  • •Internal harness loop broken (external display board)
  • •Low to no fuel pressure while cranking
  • •Check the oil level
  • •Air flow impeded

Suggested Actions

  1. 1Fuel pressure has to be measured as low for at least 1200 ms before the overcrank alarm is set.
  2. 2Check the inlet/outlet for debris.
  3. 3Check coolant sensor circuit for proper operation.
  4. 4Check the inlet/outlet for debris
  5. 5Check coolant sensor circuit for proper operation

Related Generac Fault Codes

130014001205140112041403120114041200140511011500
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