Bunn Fast Cup Series Service & Repair Manual page 15

TROUBLESHOOTING
MACHINE MESSAGES, SYMP-
TOMS and/or ACTIVE NOTICES
Miscellaneous Active Notices
28. No or Loss of Communication
29. Loss of BUNNLink Error
30. Core Temperature Alert
PROBABLE CAUSE
a. Wiring harness
a. Wiring harness
a. Machine placement/environment
b. Machine internal rear fan
15
REMEDY
a. Check wiring harness for loose con-
nection between Touchscreen and Input/
Output circuit board J15 connector
a. Check wiring harness for loose
connection between Touchscreen and
BUNNLink circuit board
a. Ensure proper ventilation around
machine
b. Check internal rear fan for operation.