UEN00240-01 40 Troubleshooting
22 PC210, 230, 240-8
Failure code [B@HANS] Hydr Oil Overheat 1
Failure code [CA111] EMC Critical Internal Failure 1
User code Failure code
Trouble
Hydraulic oil overheat
(Pump controller system)
— B@HANS
Contents of
trouble
• While engine was running, signal circuit of hydraulic oil temperature sensor detected overheating of
hydraulic oil (above about 102°C).
Action of
controller
• Displays hydraulic oil temperature monitor with red on machine monitor.
• If cause of failure disappears, system resets itself.
Problem that
appears on
machine
• If machine is operated as it is, engine may be seized.
Related infor-
mation
• Hydraulic oil temperature sensor signal is input to engine controller and then transmitted to machine
monitor.
• Hydraulic oil temperature can be checked with monitoring function
(Code: 04401 Hydraulic oil temperature)
• Method of reproducing failure code: Start engine.
Possible causes
and standard
value in normal
state
Cause Standard value in normal state/Remarks on troubleshooting
1
Overheating of hydraulic oil
(when system is normal)
Hydraulic oil may be overheating. Check it and remove cause if it is
overheating.
2
Defective hydraulic oil tem-
perature gauge system
If cause 1 is not detected, hydraulic oil temperature gauge system
may be defective. Carry out troubleshooting for "E-10 Hydraulic oil
temperature gauge does not work normally" in E-mode.
User code Failure code
Trouble
Critical internal failure
(Engine controller system)
E10 CA111
Contents of
trouble
• Memory or power supply circuit in engine controller is defective.
Action of
controller
• None in particular.
Problem that
appears on
machine
• Engine does not start.
Related infor-
mation
Possible causes
and standard
value in normal
state
Cause Standard value in normal state/Remarks on troubleshooting
1 Defective engine controller
Engine controller may be defective.
(Since trouble is in system, troubleshooting cannot be carried out.)
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