-25-
-8-
5) Check the grounding protection
The generator frame and load generator frame must be installed grounding
protection, and make sure the grounding protection is ok.
6) Check the water leakage and oil leakage.
Inspect the wholly unit and open the door to check if there is water leakage and oil
leakage. If there is, please contact with your dealer for service.
7) Check the looseness of the parts
Check the nuts and screws if loosened. If loosened, tighten them. Specially inspect
the air cleaner, muffler, and charging alternator.
Pay attention to the broken cables and loosened terminals.
Troubleshooting
Fault
Reason
3. Poor connection of inserter
1. Insufficient oil quantity
2. The lubrication system is faulty
3. The low oil pressure switch fails
Replace the fuse
2. The electric starting switch fails
or poor connection
1. The fuse on the panel breaks
1. The temperature of cooling water
is too high
4. Short circuit of low oil pressure switch
No display
P-01
Refill in oil
Check the lubrication system
Check the circuit
Check or replace the electric starting
switch
Check module No.9, PIN inserter and data wire
Refill in cooling water
Replace the low oil pressure switch of the same model
Check the sampling wiring harness,
there should be no voltage or frequency
display on the panel
Check the output frequency with multi-
meter, the displaying value should be
the same with the real value. Adjust the
engine rotating speed, set the output
frequency the same with the factory
setting
1. Sampling wire disconnects
2. Abnormal frequency (Too high
or too low)
3. Abnormal fuel system, the
engine rotating speed is unstable
Check the fuel system
P-02
Check the voltage sampling wiring
harness, there should be no voltage or
frequency display
Check the output voltage with multi-
meter, the displaying value should be
the same with the real value. Adjust AVR,
set the output voltage the same with the
related value
Check the excitation wire and carbon brush
Replace AVR or motor of the same type
1. The sampling wire disconnects
2. Abnormal voltage (too high or
too low)
3. Open circuit of excitation circuit
4. AVR or motor fails
P-03
Decrease load less than the related load,
turn on the breaker
P-04
Replace the fuse of the same type
Check the circuit and inserter
Replace the starting motor
No input of starting signal
Replace the emergent stopping button
1. Overload
1. Fuse of starting circuit disconnects
2. Starting circuit disconnects or
poor connection of inserter
3. The starting motor fails
4. The charging motor fails
1. Open circuit of charging circuit
2. Charging motor fault
1. The emergent stopping button fails
Check the charging generator AC signal wire and inserter
Replace the charging generator of the same model
P-05
P-06
P-07
Disconnect the breaker, stop the
generator set after running with zero
load for a while. Restart the generator
when the water temperature decreases
P-08
4. The water temperature switch fails
2. Insufficient water in the water tank
3. Short circuit of water temperature switch
Replace the water temperature switch of the same type
Check the circuit
Digital panel electric system
