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9.Common fault and processing methods
fault
phenomenon
1. battery low voltage
2. fuel cock not open
3. Chock valve not open
4. Low oil level
5. Oil warning system problem
Could not
6.Bad fuel oil quality
start
7.Oil circuit block
8.Ignition system problem
9.Carburetor problem
1. voltage meter broken
2. Alternator leading wire and control
panel wire fall off or not connect well.
3. Brush and slip ring do not connect
genset no
well or disconnection
output
4. AVR control panel broken
5. Short circuit, open circuit or
grounded wire
6. Circuit breaker not open
output
1.
voltage high
2.
or low
3.
output
1.
current high
2.
or low or can
3.
not adjust
4.
5.
fault cause
High or low rotate peed
AVR issue
sample wire fall off or loose
Rotate speed high or low
AVR issue
Sample mutual inductor winding
fall off or loose
Short circuit, open circuit or
grounded winding
MDS or rectifier diode short circuit
or grounded
failure process
1.
charge battery( only for electric
start)
2.
Open fuel cock
3.
Refer step 3
4.
Check oil level, add to the level
5.
Pull up warning wire, restart to
confirm (after confirm should stop
machine)
6.
Change fuel oil
7.
Clean oil circuit
8.
Check and clean spark plug，
check ignition coil.
9. Clean or repair carburetor
1.
After confirm, stop machine and
replace
2.
Check and repair
3. Clean slip ring or replace brush or
connect wire
4.
replace
5.
Inspect and repair, or replace
alternator winding.
open circuit breaker （ only limited
6.
to assistant power）
1.
Adjust rotate speed
2.
Replace AVR
3.
reconnect
1.
Adjust rotate speed
2.
Replace AVR
Replace mutual inductor winding
or connect
3.
Check and repair, or replace
alternator winding
4.
Replace MDS module or rectifier
diode
23
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