40
Troubleshooting
Model SB25
PROBLEM POSSIBLE CAUSE REMEDY
Recipe key #2 - continuous
illumination (thermistor open fault).
Motor failure. Use the Motor Troubleshooting
Guide to evaluate the motor and
replace if necessary.
Recipe key #3 - fast blink (blender
over temperature or jam).
Blender motor is jammed. Reset the unit and press the
BLEND key. Repeated jams
indicate a failed blender motor.
Use the Motor Troubleshooting
Guide to evaluate the motor and
replace if necessary.
Recipe key #3 - slow blink (blender
over temperature)
The blender motor is over
temperature.
Reset the unit. Use the Motor
Troubleshooting Guide to
evaluate the motor and replace if
necessary.
Recipe key #3 - continuous
illumination (thermistor open fault).
Motor failure. Use the Motor Troubleshooting
Guide to evaluate the motor and
replace if necessary.
Recipe key #4 - fast blink (over
temperature fault).
Motor drive board is over
temperature.
Reset the unit. Use the Drive
Board Troubleshooting guide to
evaluate the board and replace if
necessary.
Recipe key #4 - slow blink (low bus
voltage).
Low voltage supplied to unit. Use the Drive Board
Troubleshooting guide to
evaluate the board and replace if
necessary.
Recipe key #1, 2, 3, or 4 - fast blink
(communication fault).
No communication between the
keypad and the dispense board.
Check the ribbon cable
connections. Replace keypad,
ribbon cable, or the dispense
PCB if necessary.
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