Taylor SB25, Руководство по обслуживанию

Страница: 47 / 72

43
Model SB25
Troubleshooting
Drive Board Troubleshooting
1. Check the supply circuit providing power to the
machine for proper voltage (~120 VAC).
2. Turn the machine off, unplug, and wait 10
seconds for the charged capacitors to lose
charge. Expose the drive board and check
these items in the following order:
a. Make sure all connectors are seated firmly
onto their pins. Loose or unseated
connectors will cause fault readings.
b. Check the fuse. Visually, the fuse filament
should be continuous and not burnt. Check
continuity with the multimeter. The fuse
should not read “OL” when measuring
ohms.
c. Plug in and turn on the machine. Locate
the green LED (D36) on the drive board,
which is approximately 1.5” above the
lower right corner of the drive board. The
green LED should be illuminated
continuously. If the LED is not illuminated,
the board is defective. Replace the drive
board.
d. Locate the red LED (D21) on the drive
board, which is approximately 0.5” above
the lower right corner of the drive board.
1. If the LED is flashing 1 second on then
1 second off, the drive board operation
is normal.
2. If the LED is flashing 2 pulses per
second, the drive detects low voltage
on the power bus. If the supply circuit
voltage is correct, replace the drive
board.
3. If the LED is flashing once every two
seconds, the ice hopper lid switch is in
the open state. Check that the ice
hopper lid is on and the sensor pulls up
magnetically. Check that the LID1
connector is firmly attached to the
board. Simulate a closed state on the
drive board by jumping LID1 pins
together with a two pin jumper or a
patch cord. If the error goes away
while jumped, check the lid sensor
mechanism. If jumping LID1 does not
change the state of the error, replace
the drive board.
4. If the LED is flashing 2 times, pauses
and repeats, the drive board detects a
locked blender motor. Check for
obstructions in the blender pitcher.
Troubleshoot the blender motor.
5. If the LED is flashing 3 times, pauses
and repeats, the drive board detects a
locked ice shaver motor. Check for
obstructions in the ice hopper.
Troubleshoot the ice shaver motor.
6. If the LED is flashing 4 times, pauses
and repeats, the drive board detects
over temperature of the blender motor.
This may occur due to high frequency
use of the machine. If the blender
motor connector is not seated, this
error may occur. Troubleshoot the
blender motor.
7. If the LED is flashing 5 times, pauses
and repeats, the drive board detects
over temperature of the ice shaver
motor. This may occur due to high
frequency use of the machine. If the
ice shaver motor connector is not
seated, this error may occur.
Troubleshoot the ice shaver motor.
8. If the LED is flashing 6 times, pauses
and repeats, the drive board detects
over temperature of the motor. This
may occur due to high frequency use
of machine. The drive board heat sink
is a black section of metal below the
left side of the electronics. If the metal
is cool while the control indicates over
temperature, replace the drive board. If
the metal is hot, troubleshoot both
motors.
9. If the LED is flashing 8 times, the
blender circuit detects an over current
fault. Field test the motor. If the motor
is okay and the fault persists, replace
the drive.
10. If the LED is flashing 9 times, the
shaver circuit detects an over current
fault. Field test the motor. If the motor
is okay and the fault persists, replace
the drive.