If Generator fail to start automatically during power failure What are the causes are present?

ATS system not working ( should be send signal to Generator to switch on).

Genrator in manual mode .

the Genrator battery is down .

Generator problrms .

Battery

failureLow coolant levels

Low coolant temp alarms

Oil fuel or coolant leaks

Controls not in auto

Air in the fuel system

Ran out of fuel

High fuel level alarm

Breaker trip

Firstly you have to check if the battery is not flat, if it is ok, proceed to check main switch if it is not tripped, then check if the generator is set to automatic operation or manuual. you need to check also the fuel level if it is in empty or not.

The cause of the machine fails to start negative is;1. Accu voltage is weak or below normal,2. There is air on the fuel line,3. The circulation of lubricating oil is not smooth.

1. faulty wiring from ats to genset.

2. low dc battery

3. switch not in automatic selection

4. contactor relay not energize or energize

5. mcb on trip mode

It necessary to check all faults are clear, check the sequence of operations for start-up.

Check the control panel of all breakers are working, check supply voltage,check fuel level.

short circuit or mechanical problem

There are manay causes,

Battery failure

No fuel

mechanical issue

Electronic issue

battery failure, low coolant levels, low coolant temp alam, oil fuel coolant leaks, control is not auto, air in the fuel system

If this fail to start happend before ignition usually the problem was on the starter system , where it could be that the starter it self or maybe the motor starter or turbine starter (if se use pneumatic starter) . 

If this fail to start happend after ignition the usually the problem is the fuel system . Could be the fuel solenoif valve was jammed, the fuel regulator had problem or meybe the setting of fuel control system.