Part 1: Solutions for faults of electrical control in diesel generator

This article mainly talks about how to solve the faults of electrical control in diesel generator set.

1.When the key is turned to “START” for the manual control genset, the genset does not start or the liquid crystal display module controls the genset, and the genset does not start when turn on the start button.

A.Check whether the key switch is working correctly or whether the module start-up port has output;

B.Check whether there is any fault indication, repair the fault if necessary, and reset the corresponding fault information;

C.Check the battery voltage. If the voltage is too low, you need to recharge the battery to full. If the voltage value is normal, you should gradually check whether the voltage signal is correctly sent to all control links according to the drawing, such as throttle solenoid valve and starter motor etc;

D.Check if the emergency stop button has been relaxed;

E.Check whether the start relay good.

2.Start motor, it can work, but the diesel generator can not drive.

A.Check the fuel level and make sure the tubing is properly connected;

B.For the mechanical speed control system generator set, check whether the throttle solenoid valve is properly sucked;

C.For the electronic speed control system diesel generator, check whether the EPG power supply is properly connected and the voltage is normal;

D.For the electronic speed control system genset, when the starter motor is running, use the electric meter to measure whether the MPU has the correct AC voltage signal;

E.Check whether the genset speed has reached or exceeded the set start normal speed;

F.Check whether the fuel delivery system is blocked;

G.Check whether the air filter is blocked;

F. In cold areas, should ensure electric generator is warmed up before starting.

3. High water temperature fault alarm or shutdown.

A. Check whether genset is overload;

B. Check the tightness of the fan belt;

C. After the diesel genset is completely cooled, check if the water level of the cooling water is sufficient;

D. Check whether the water temperature sensor is damaged;

E. Check whether the water temperature sensor switch alarm is correct;

F. Check if the thermostat valve opens correctly;

G. Check that the gap between the pump and the water tank is correct;

H.Confirm that the temperature in the equipment room is not higher than 40 °C.

Hope this article can help you to solve the faults of electrical control system in diesel generator set.

Starlight power manufacturer was set up in 1974, has rich experience in sell and after-sales diesel generator, if you need any information, welcome to inquiry sales@dieselgeneratortech.com.