Chapter 4: Troubleshooting
Troubleshooting Tables
4-32 Service Manual
4.4.5.8 Sys Fail 09 [XX 80 XX XX]
Heat control processor failure occurred during Run Time. Heater Control Failure.
4.4.5.9 Sys Fail 09 [0A XX 00 00]
Heat control processor failure during Run Time. Heater Safety Relay is open.
4.4.5.10 Sys Fail 09 [0B 00 00 00]
Heat control processor failure occurred during Run Time. Open T-Stat.
4.4.5.11 Sys Fail 10 [XX XX XX XX]
Self-calibration failure occurred.
4.4.5.12 Sys Fail 11 [xx 00 00 00] -or- [FF FF FF FF]
Heat Control Processor stopped communicating with the Main Application Processor. (xx indicates number
of seconds since last communication)
Possible Causes Step Troubleshooting Procedure Comments
Heater Control
Failure
1. Replace Power PCA.
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 #:
6600-1411-601
Defective Control
PCA
2. If problem persists, replace Power PCA.
Possible Causes Step Troubleshooting Procedure Comments
Open T-Stat 1.
Refer to steps under “4.4.5.6 Sys Fail 06 [0B XX 00
00]”.
Possible Causes Step Troubleshooting Procedure Comments
Control PCA failure 1. Replace Control PCA.
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 #:
6600-1411-601
2.
Verify +5V DC at TP20 pin 2 on the Power PCA.
If not present, replace Power PCA.
DMM
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