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ENGINE TROUBLESHOOTING
The following troubleshooting chart describes certain problems
and causes relating to engine service. Also note there is a
Diagnostic Troubleshooting section that follows.
Problem
Engine does not crank.
Engine cranks, does not start
(engine will crank 8 seconds)
(3 crank cycles before underspeed fault occurs)
Engine starts, runs and the shuts down.
Engine hunts.
Engine ll)isfires/back firing.
Engine overheats/engine temp LED is illuminated.
Exhaust temp LED is illuminated.
Low oil pressure/oil pressure LED is illuminated.
Note:
When servicing the engine/generator; the main circuu
breaker (control panel) disconnects all AC power and can be
switched o.ff and reset manuallv.
Possible Cause
1. DC panel breaker OFF.
2.DC battery OFF.
3.K2 relay faulty.
4.Starter solenoid faulty.
5. DC battery low/dead
oR LOOSE BlilTERY cABI.E.
&.Faulty starter solenoid.
7. Water filled cylinder.
B. DC panelS amp buss fuse is faulty.
1.Fuel starvation.
2.Air in fuel system.
3.Fouled spark plugs.
4.Faulty ignition coil.
5.Stuck throttle body.
1.Fuel starvation.
2.Air in fuel system.
3.Faulty shutdown switch/sensor.
4.Faulty fuel pump.
1.Air in fuel system.
2.Faulty fuel pump.
3.Low octane fuel (lower than 89).
4.Faulty speed sensor (crankshaft).
1.Low octane fuel (lower than 89).
2.Dirty air intake screen
3.High tension ignition wires.
4.Exhaust restriction.
5. Worn/fouled spark plug.
&.Faulty ignition coil.
7 .Low or no fuel pressure. Poor quality fuel.
1.Raw water coolant flow obstruction.
2.Coolant level low.
3.Faulty impeller.
4.Pump belt loose/broken.
5.Stuck thermostat.
&.Air in cooling system (fresh water).
1. Loss of coolant flow/faulty pump.
2.Faulty exhaust temperature switch.
1.0illevellow.
2. Faulty oil pressure send or.
3. Oil viscosity incorrect.
Engines & Generators
20
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