GE PANDA, Service Manual

Page: 96 / 212

Chapter 4: Troubleshooting
Troubleshooting Tables
4-34 Service Manual
4.4.5.14 Sys Fail 11 [FF FF FF FF]
Heat Control Processor communication message failed.
4.4.5.15 Sys Fail 12 [xx 00 00 00]
Audio Processor stopped communicating with the Main Application Processor. (xx indicates number of
seconds since last communication.)
4.4.5.16 Blank Screen, Alarm Lights On, HP Alarm
There was a loss of communication from Main Application processor.
4.4.5.17 Red Screen, Alarm Lights Flashing, HP Alarm
NVRAM failure occurred.
8.
Allow the warmer to cool with power off for at least
30 minutes and then recheck it.
Defective/
Disconnected cable
9.
Check ribbon cable between Power and Control
PCA’s is properly seated. If OK replace Control PCA.
20 pin ribbon
cable part #:
6600-1411-601
Possible Causes Step Troubleshooting Procedure Comments
Defective/
Disconnected cable
1.
Check ribbon cable between Power and Control
PCA’s is properly seated. If OK replace Control PCA.
20 pin ribbon
cable part #:
600-1411-601
Possible Causes Step Troubleshooting Procedure Comments
Control PCA failure 1. Replace Control PCA.
Possible Causes Step Troubleshooting Procedure Comments
1. Reload the main application code.
2. If problem persists, replace Control PCA.
Possible Causes Step Troubleshooting Procedure Comments
Real Time Clock /
NVRAM Failure
1.
Confirm that the following message appears on
the ThermaLink port:
"Unrecoverable NVRAM error"
2. Re-load software and re-test.
3. If error still occurs, replace Control PCA.
Possible Causes Step Troubleshooting Procedure Comments