Panasonic KX-T336 System Reference Manual page 1450

Troubleshooting via the LED indicators
Alarm LED on
Is it possible to read out the
Error Log records?
No
Check the status of the
followings
• CPU RAM
• TSW
• OHCA SW
• CONF SW
• LPR
• SMDR
Fault
Is Error Log record printed
out?
No
Is the Local Alarm reported?
No
Is the Remote Alarm
reported?
No
Infer the defective device
through the User's report or
the indication of the LED on
the card
Repair or replace the
probable defective device
NG
Consult the nearest Service
Center
Not Fault
Yes
Yes
Yes
OK
End
14-E-3
Yes
Troubleshoot by consulting
the Error Log Record List
NG
OK