There are many reasons for the unstable voltage of diesel generator sets. I believe that many users will encounter the following situations in the process of using diesel generator sets. The following table:
| Reasons for Voltage Instability of Diesel Generator Sets | Solutions and Countermeasures |
| Part of the wire connection is loose | Check the connection parts of the diesel generator set and repair it. |
| The voltmeter fails and the voltage is unstable | Replace with new voltmeter. |
| Bad generator regulator board or unregulated regulator | Double check that the voltage regulator is not bad or not properly adjusted. Instant replacement or adjustment. |
| Control panel voltage-current selection switch failure | Replace diesel generator switch. |
| It may be that the speed of the engine is unstable and the voltage is unstable. | Adjust or replace diesel fuel system parts to stabilize speed |
| It may be caused by excessive vibration during the operation of the diesel generator set | Instantly check whether the shock pad of the generator set is damaged or the set is unbalanced. |
| Control panel voltage adjustment resistor failed | Replace the voltage regulator resistor. |