Generac GT-999 Engine Engine

• DANGER 000001
• Problem 22 – Battery is Dead Battery is Dead
  Fix: Test 45 – Check Battery and Cables
• Problem 21 – No Low Speed Exercise No Low Speed Exercise
• Problem 20 – Generator Will Not Exercise Generator Will Not Exercise
  Fix: Test 45 – Check Battery and Cables
• Engine Will Not Crank When Utility Power Source Fails Evolution E-Code 2400
  Fix: Test 44 – Check 7.5 Amp Fuse Evolution Alarm Code 2400
• Wiring Error ALARM 2099
• Voltage and Frequency Drop Excessively When Loads Are Applied
  Fix: TEST 14 - CHECK VOLTAGE AND FREQUENCY UNDER LOAD, BOTH LOW -> TEST 15 - CHECK FOR OVERLOAD CONDITION, NOT OVERLOADED -> GOOD -> IF RECONFIGURED TO LP GAS, VERIFY THAT PROPER PROCEDURE WAS FOLLOWED (REFER TO INSTALLATION MANUAL), GOOD -> OVERLOADED -> DISCONTINUE TESTING, REDUCE LOADS TO UNIT’S RATED CAPACITY, TEST 12 - CHECK STEPPER MOTOR CONTROL, GOOD -> BAD -> REPAIR OR REPLACE, LOOK FOR A SHORTED CONDITION IN A CONNECTED LOAD OR IN ONE OF THE LOAD CIRCUITS, GOOD -> TEST 7 - CHECK STATOR AC POWER WINDINGS, ENGINE CONDITION GOOD -> REPAIR OR REPLACE, BAD -> TEST 16 - CHECK ENGINE CONDITION, GOOD -> GO TO “PROBLEM 18 - ENGINE STARTS HARD AND RUNS ROUGH/LACKS POWER” SECTION 4.3
• Unstable Voltage or Incorrect Output Which is Not Triggering a Shutdown
  Fix: TEST 1 - CHECK AC OUTPUT VOLTAGE, ERRATIC -> PROCEED TO PROBLEM 3
• Undervoltage 1902
• Stepper Overcurrent ALARM 2100
• RPM Sensor ALARM 1501
• Prolonged Over-Voltage Undervoltage 1900
• Overspeed ALARM
  Cause: Prolonged (60 Hz on a 50 Hz unit, 72Hz on 60Hz unit) Over specified Hz for 3 seconds. Possible cause: Stepper motor/mixer body assembly issue.
• Overloaded ALARM 2102
• Overload Remove Load ALARM 2399

Compiled from service & troubleshooting documentation across every generator set that uses the Generac GT-999.