Failure Code [Aa10Nx] Air Cleaner Clogging; Troubleshooting - Komatsu PC130-8 Shop Manual

40 Troubleshooting

Failure code [AA10NX] Air cleaner clogging

User code Failure code
— AA10NX
Contents of • While engine was running, signal circuit of air cleaner clogging switch detected clogging of air
trouble cleaner (sensor contact opened).
Action of • Displays air cleaner clogging monitor on machine monitor.
machine monitor • If cause of failure disappears, system resets itself.
Problem that
appears on • If machine is operated as it is, engine may be damaged.
machine
• Condition of air cleaner clogging switch signal can be checked with monitoring function.
Related
(Code: 04501 Monitor input 2)
information
• Method of reproducing failure code: Start engine.
Possible causes Clogging of air cleaner (when
1
and standard system is normal)
value in normal
Defective air cleaner clog-
state
2
ging monitor system
PC130-8
Air cleaner clogging
Trouble
(Machine monitor system)
Cause Standard value in normal state/Remarks on troubleshooting
Air cleaner may be clogged. Check it for clogging and then clean
or replace if clogged.
If cause 1 is not detected, air cleaner clogging monitor system may
be defective. Carry out troubleshooting for "E-7 Caution item
flashes while engine is running" in E-mode.
SEN04119-01
1
5