Issue 1
17
9 Fault finding general
Fault
Action
High engine
Check Water/Antifreeze level in the radiator.
temperature
Check for loose wires on the temperature switch & DC loom connector block.
Check the continuity of the earth wire. (Refer to wiring diagram)
Check radiator surface (both sides) and fins are not obstructed.
Check operation of the Temperature switch.
Check that the generator air inlets and outlets are not obstructed.
Check the fan belt is not damaged, broken or loose. (Refer to handbook)
Note you may experience low charge if fan belt is loose.
Low oil pressure
Check Oil level and fill to correct level if necessary
Check operation of Oil switch.
HZ & Voltage
Check reset button not tripped and reset if required.
shutdown
Check AC Input at module.
Check engine speed is set to 50Hz at no load.
Check AC supply from alternator. (If no output refer to alternator handbook)
Check fuse on AVR.
Check engine has been regularly serviced.
No power to
Check fuse.
control
Check 12V DC supply to module. If supply present but not operational try new unit.
module
Check battery voltage.
Check battery isolator switch is on.
Check for loose wires on battery isolator.
Check for loose wires on the DC connector plug and socket.
Check continuity on +VE and -VE wires to battery.
Battery not
Note you may experience low charge if fan belt is loose.
charging
Check for loose wires on the DC connector plug / socket & charge alternator.
Check continuity of all wires from charge alternator. (Refer to wiring diagram)
Check voltage at battery while generator is running, voltage should be 13.4 - 14.4V.
Check battery voltage is above 12.5V.
Engine not
Check Oil level and fill to correct level if necessary.
starting
Check fuel level.
Check 3 way valves are in correct position. (If fitted)
Check operation of fuel lift pump.
Glow plugs not
Check Emergency stop.
operating
Check the fuses.
Check battery voltage is above 12.5V.
Check for loose wires on the Glow plug, relays, fuses, module terminals, plug and socket.
Check -VE supply.
Check +VE on Glow plug & trace back to battery via relay.
Check +VE on Glow plug & trace back to module via relay, plug & socket.
Starter Motor not Check Emergency stop.
operating
Check the fuses.
Check battery voltage is above 12.5V.
Starter Motor not
Check for loose wires on the solenoid, relays, fuses, module terminals, plug and socket.
operating
Check +VE supply from battery to starter motor via isolator switch.
Check -VE supply.
Check start terminal on Starter motor & trace back to module via relay, plug & socket.
Fuel solenoid not Does the Fuel solenoid energises when the starter motor turns over.
operating
Check Emergency stop.
Check the fuses.
Check battery voltage is above 12.5V.
Check for loose wires on the solenoid, relays, fuses, module terminals, plug and socket.
Check -VE supply.
Check +VE on Fuel solenoid & trace back to battery via relay.
Check +VE on Fuel solenoid & trace back to module via relay, plug & socket.
