Bunn Ultra NX Service & Repair Manual page 26

FAULT MESSAGES
User Panel
DEFROST INCOMPLETE
Trip Condition: This message appears if the left or right Barrel Defrost did not complete successfully (pos-
sibly either cancelled or defrost time frame too short).
Probable Cause: Given the condition per location, the "Defrost" time set too short. Operator should enter
software menu and increase the Defrost time.
Clear Condition: c
CLOCK FAILURE / INVALID DATE / INVALID TIME
Trip Condition: This message appears if there's an issue with reading or setting of the RTCC or a potential
battery failure was detected.
Probable Cause: Defective main control board.
Clear Condition: b
USB OVER CURRENT
Trip Condition: This message appears if a USB over current condition was detected. This is likely a short on
the USB connector.
Probable Cause: Defective main control board.
Clear Condition: b
MONTHLY FILTER CLEANING REQUIRED
Trip Condition: This message appears if the 30 day filter clean is due on the machine.
Probable Cause: Friendly reminder message.
Clear Condition: a
CLEAN DUE TODAY / CLEAN DUE NOW / CUSTOM USER TEXT
Trip Condition: This message appears if cleaning is due on the machine.
Probable Cause: Feature enabled in software menu.
Clear Condition: e
SHAFT SEAL MAINTENANCE DUE
Trip Condition: This message appears if the 12 Month PM is due for the machine. The 12 Month PM feature
must be enabled for this message to appear.
Probable Cause: 12 Month Pm feature enabled. Operator/Technician must enter software program, enter
"Service Settings", then confirm "Yes" under the "PM Complete" menu.
Clear Condition: N/A
BOOTLOADER NEEDS UPDATE
Trip Condition: This message appears if the bootloader is seen as out of date / needs updated.
Probable Cause: BootLoader is out of date.
Clear Condition: f
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