Section 20    Failures and After-Sale Services  20-14 
 
Symptom  Cause  Action 
The following popup 
window is displayed. 
System has detected an 
error. 
Turn the power off and 
on again. 
A communication error occurred. 
Close the popup window and after 
checking that there is no problem 
even if the power of this equipment is 
turned off, turn off the power once 
and turn on the power again. 
The following popup 
window is displayed. 
 
Network failure has been 
detected. This system is 
operating under 
restricted mode. 
Contact JRC or JRC 
service agent. To restart 
this system, click the OK 
button at safe waters. 
A network failure occurred. 
Make a request to the distributor for 
repair. 
And restart this system at safe 
waters. 
The following popup 
window is displayed. 
 
Main LAN is disabled. 
This system is operating 
with Sub LAN only. 
Contact JRC or JRC 
service agent. After 
recovering by service 
engineer, click the bellow 
button. 
A  network  failure  occurred  on  the 
main LAN. 
Make a request to the distributor for 
repair. 
The following popup 
window is displayed. 
 
Sub LAN is disabled. 
This system is operating 
with Main LAN only. 
Contact JRC or JRC 
service agent. After 
recovering by service 
engineer, click the bellow 
button. 
 network failure occurred on the sub 
LAN. 
Make a request to the distributor for 
repair. 
The following popup 
window is displayed. 
 
Main/Sub LAN is 
disabled. This system is 
operating with serial in 
CCU only. 
Contact JRC or JRC 
service agent. After 
recovering by service 
engineer, click the bellow 
button. 
A  network  failure  occurred  on  the 
main LAN and sub LAN. 
Make a request to the distributor for 
repair.