1. The wiring part of the wire is loose. Solution: Check each connection part of the diesel generator set and repair it. Ship repair

2. The voltage-current selection switch of the control panel fails. Solution: Replace the switch for the diesel generator set.

3. The voltage adjustment resistor of the control panel fails. Solution: Replace the voltage adjustment resistor.

4. The voltmeter fails. Solution: Change the voltmeter.

5. The voltage regulator is defective or not adjusted. Solution: Check the voltage regulator.

6. Excessive vibration during the operation of the diesel generator set. Solution: Check the shock-absorbing equipment of the diesel generator set.

7. The engine speed is unstable. Solution: Adjust or replace the engine fuel system parts to stabilize the speed.