Lifan

Lifan Standby Generators Error Codes

Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.

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E01
Generator will not start and the controller displays E01 shortly after a start attempt.
Low Oil Pressure Shutdown
E02
Generator shuts down shortly after starting and displays E02 on the Lifan controller.
High Engine Temperature / Overheat Shutdown
E03
Lifan standby generator cranks but does not start and the controller shows E03.
Low Battery Voltage / Battery Fault
E04
Generator shuts down during operation and the controller displays E04.
Over-speed Protection Trip
E05
Lifan controller shows E05 and the generator will not start or shuts down quickly.
Under-speed / Loss of Engine Speed
E06
Generator attempts to start but stops and displays E06 on the Lifan control panel.
No AC Output / Alternator Failure Detected
E07
Lifan standby generator shuts down and displays E07 during operation under load.
Overload / Overcurrent Protection Trip
E08
Controller shows E08 and the generator will not start in AUTO mode.
Emergency Stop / Remote Stop Active
E09
Lifan generator controller displays E09 and refuses to start.
Low Fuel Level / Fuel Supply Fault
E10
Generator stops and E10 appears on the Lifan control panel during operation.
High AC Voltage Output
E11
Lifan controller shows E11 and the generator shuts down or refuses to connect to load.
Low AC Voltage Output
E12
Controller displays E12 and the generator will not crank when a start is requested.
Starter Circuit Fault
E13
Lifan standby generator controller shows E13 after several failed start attempts.
Failed Start / No Ignition
E14
Generator runs briefly then stops with E14 displayed.
Fuel Solenoid / Fuel Shutoff Fault
E15
Lifan controller shows E15 and the generator will not transfer load.
Phase Sequence / Frequency Error
E16
Controller displays E16 and prevents automatic operation.
Controller Internal Error / Memory Fault
E17
Lifan standby generator shows E17 and will not start in AUTO when utility fails.
Utility Sensing Fault
E18
Controller displays E18 and the generator shuts down unexpectedly.
Exhaust Temperature High / Exhaust Sensor Fault (if equipped)
E19
Lifan controller shows E19 and the engine stops shortly after starting.
Intake Air Temperature / MAP Sensor Fault (EFI models)
E20
Controller displays E20 and the generator refuses to run continuously.
Oil Temperature / Oil Level Sensor Fault (advanced models)
Symptom
Black smoke from exhaust and strong fuel smell during operation.
Over-fueling / Rich Mixture
Symptom
Corrosion and rust visible inside the Lifan generator enclosure, with intermittent electrical issues.
Moisture Ingress / Corrosion Damage
Symptom
Generator cranks slowly or not at all, with no error code on the Lifan controller.
Weak Cranking / High Starter Load
Symptom
Generator output breaker trips immediately when connecting to load, but no controller error code is shown.
Downstream Short Circuit / Ground Fault
Symptom
Generator runs but battery does not stay charged between exercise cycles.
Battery Charging System Failure
Symptom
Generator runs but frequently shuts down after several hours with no visible code (older analog panels).
Thermal Shutdown / Intermittent Overheat
Symptom
Generator runs but house lights flicker and sensitive electronics behave erratically.
Unstable Voltage / Frequency Fluctuation
Symptom
Generator runs but is excessively noisy compared to normal operation.
Exhaust or Mechanical Noise Issue
Symptom
Generator runs but produces a strong fuel smell around the Lifan enclosure.
Fuel Leak / Rich Running Condition
Symptom
Generator runs but the Lifan controller display is blank or intermittent.
Controller Power / Display Failure
Symptom
Generator starts and runs but does not transfer power to the house.
Automatic Transfer Switch (ATS) Fails to Transfer
Symptom
Generator starts and stops repeatedly in short cycles without stabilizing.
Short Cycling / Control Logic Issue
Symptom
Generator starts and then stalls when large loads (like air conditioners) start.
Load Step Response / Insufficient Capacity
Symptom
Generator vibrates excessively during operation, causing the Lifan enclosure to shake.
Excessive Vibration / Imbalance
Symptom
Generator will not start automatically during a power outage, but starts manually at the unit.
Auto Start Signal / Remote Start Circuit Failure
Symptom
Visible oil leak under the Lifan standby generator set.
Engine Oil Leak
Symptom
White or blue smoke from the exhaust when the generator is running.
Oil Burning / Incomplete Combustion
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