Generac Generator Fault Codes
• Before starting work on the generator set, disconnect battery charger from its AC source, then disconnect starting batteries, negative (–) cable first. This will prevent accidental starting. • Make sure that fasteners on the generator set are secure. Tighten supports and clamps, keep guards in position over fans, drive belts, etc.
DISPLAYED ALARM E-CODE BREAKDOWN DESCRIPTION NOTES Controller Fault No E-code on HSB Replace Controller Overcrank 1100 Condition - Engine Cranks but will not Start Unit turns over but will not start. Controller is receiving signal on Wire 18. Problem 17 Overspeed 1200 Prolonged Over 72 Hz for 3 seconds. Possible cause: Stepper motor/mixer body assembly issue. Test 12 Overspeed 1205 Instantaneous Over 75Hz for.1 second (100 milliseconds). Possible cause: Stepper motor/mixer body assembly issue.
Test 12 Low Oil Pressure 1300 Occurred while running The default Extended alarm for low oilpressure. Check oil level and pressure. Test 61 High Temperature 1400 Condition - Air Flow Impeded I Flow Issue Check the inleUoutlet for debris. Test 62 RPM Sensor 1501 Twin Cylinder+Running Twin Cylinder Running faults to RPM sensor loss. Possible Causes: air pocket in fuel line. Dirty fuel, missing ignition pulse (loss of one of the primary coils).
Test 50 and Test 64 RPM Sensor 1505 Twin Cylinder+Cranking Twin Cylinder Cranking faults to RPM sensor loss Possible Cause: starter motor issue, missing ignition pulse (loss of one of the primary coils). If engine cranks, Test 64. If engine does not crank, Problem 15. RPM Sensor 1511 Single Cylinder+Running Single Cylinder Running with Low Fuel Pressure faults to RPM sensor loss Possible Causes: air pocket in fuel line,dirty fuel. Test 50 and Test 64 RPM Sensor 1515 Single Cylinder+Cranking Single Cylinder Cranking faults to RPM sensor loss Possible Cause: starter motor issue.
Generac Generator Fault Codes
If engine cranks, Test 64. If engine does not crank, Problem 15. Underspeed 1600 Condition - Unit is Overloaded Unit is Overloaded slowing engine speed, fuel supply low or throttle control problem. Problem 1, Test 50 or Test 12 Overvoltage 1800 Prolonged Over-Voltage Problem 2 Undervoltage 1900 Prolonged Under-Voltage Undervoltage due to loss of voltage for some time (10+ seconds). Test 5 Undervoltage 1901 Instantaneous Undervoltage due to sudden loss of voltage.