Generac

2790

UnclassifiedLubrication

What This Code Means

O2 sensor stuck open/closed; Low fuel level; Low fuel pressure; Fuel in the outer basin tank; Battery voltage below 12.1V for greater than 60 seconds; Completed 26 hour charge cycle, battery voltage below 12.52V, or current draw from charger still greater than 600 mA; Battery voltage above 16.1V; AC input to battery charger missing for greater than five minutes during charging; Controller wrote to the EEPROM more than 500 times in less than four minutes; Air/fuel mix is too rich for more than 10s; Air/fuel mix is too lean for more than 60s; Low Fuel Level; Low Fuel Pressure; Battery voltage is above 16.1Vdc; Battery voltage is less than 12.5 VDC after completing 26 hour charge cycle; AC input to battery charger missing for greater than 5 minutes during charging; Controller wrote to the EEPROM more than 500 times in less than 4 minutes; Config computed CRC unequal to stored EEPROM CRC; Generator Emergency Shutdown Switch button was pressed; AUX shutdown; Auxiliary shutdown or onboard ro

Possible Causes

  • •DTC logged in eeprom
  • •Fuel level above 10% but lower than 20% for greater than 60 seconds
  • •Low fuel pressure detected for greater than 60 seconds
  • •Ruptured tank
  • •Low battery
  • •Battery Problem
  • •Charger Warning
  • •Charger Missing AC
  • •EEPROM Abuse
  • •Gaseous Emissions
  • •Ruptured Tank
  • •Charging system issue
  • •AC power loss to charger
  • •EEPROM abuse
  • •EEPROM CRC mismatch
  • •Emergency Stop button activation
  • •AUX shutdown activation
  • •Auxiliary shutdown switch activation
  • •Power Zone 410 front panel button press
  • •External I/O Extender alarm

Suggested Actions

  1. 1Warning will clear after engine runs with no DTC codes three times
  2. 2System detected fuel in the outer basin tank and has triggered the warning
  3. 3The system detected fuel in the outer basin tank and has triggered the warning.
  4. 4Address charging system
  5. 5Test 120 Volt Input (T1) page 169
  6. 6Power cycle controller.
  7. 7If problem persists, replace controller
  8. 8Test 29 – Emergency Stop Relay (ESR) Test page 75
  9. 9Reset Aux shutdown switch
  10. 10Review alarm log and address active alarms.

Related Generac Fault Codes

2910321527803217277000350327604200275042042730BATTERY CHARGER AC FAILURE ALARM
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