9. Methods of Unexpected Problem
Generator can't start
Check the power
control system
Check fuel and
machine oil
Check cylinder
compression
Check fuel supply
system
No voltage output
Check AC circuit
breaker
Check AVR
Send generator to
repair center
Cause
Bad connections of
current line
Battery power is low
Without fuel
Without oil
Fuel deterioration or
contain deteriorated fuel
Piston ring worn or rings
in wrong place
Valve clearance is not
correct
Bolts of cylinder head
are not tighten
Fuel oil or switch of fuel
oil plugs
Possible cause
AC circuit breaker is
not open
AC circuit breaker
is broken
AVR is broken
Motor failure, circuit
failure
Remedy
Check each connector
1. Charge the battery
2. Change the battery
Add fuel
Add oil
Drain the fuel tank and
add fresh fuel
Change and adjust
piston ring
Adjust the clearance as
per operational manual
Re-tight the bolt
Replace or repair
defective parts
Remedy
Turn the AC circuit
breaker to “ON” position
Replace the AC
circuit breaker
Replace AVR
Replace or repair
defective parts
-12-
