Blender Troubleshooting - Taylor SB25 Service Manual

Blender Troubleshooting

Ice Shaver Motor Troubleshooting
1. Pin Continuity
a. Pins 8, 9, and 10 should have continuity.
b. Pins 8, 9, and 10 should NOT have
continuity to pins 1 -7.
c. No pins should have continuity to ground.
If any of the continuity tests above fail, replace
the motor.
2. Motor Shaft
a. Facing the motor shaft, turn the shaft
counter-clockwise. Use caution as the
shaver blade is extremely sharp. The shaft
should turn smoothly, not drag or make a
noise while turning. (Note: This motor
requires some force to turn and will cog or
step into position.) If the motor does not
turn freely, replace the motor.
3. Power Leads Resistance
a. Remove the orange connector from the
drive board and insert the header into the
connector.
b. Check the resistance between the motor
power leads (red, white, and black). This
reading should be ~ 11.3 Ω. The
acceptable range is 9.8 Ω to 12.3 Ω. If the
resistance is outside the acceptable range,
replace the motor.
c. Check resistance between the two gray
wires (thermistor). The reading should be
~ 11.3 KΩ at 70 F. The typical range at 70
F is 8.8 KΩ to 13.65 KΩ. If the multimeter
reads "OL", the thermistor is broken. If the
multimeter displays less than 5 Ω or "0",
the thermistor is shorted. If the thermistor
is broken or shorted, replace the motor.
d. Check continuity between the ground
(green/yellow) wire and each lead, one at
a time. The multimeter should display "OL"
for each measurement. If not, there is a
dead short in the motor and the motor
should be replaced.
Troubleshooting
Blender Motor Troubleshooting
1. Pin Continuity
a. Pins 1, 2, and 3 should have continuity.
b. Pins 1, 2, and 3 should NOT have
continuity to pins 4 - 10.
c. No pins should have continuity to ground.
If any of the continuity tests above fail, replace
the motor.
2. Motor Shaft
a. Facing the motor shaft, turn the shaft
(using a metal object) counter-clockwise.
The shaft should turn smoothly, not drag
or make a noise while turning. (Note: This
motor turns freely with minimal force and
does not cog.)
3. Power Leads Resistance
a. Remove the orange connector from the
drive board and insert the header into the
connector.
b. Check resistance between the motor
power leads (red, white, and black). This
reading should be ~ 1.3 Ω. The acceptable
range is 0.8 Ω to 1.5 Ω. If the resistance is
outside the acceptable range, replace the
motor.
c. Check resistance between the two gray
wires (thermistor). The reading should be
~ 11.3 KΩ at 70 F. The typical range at 70
F is 8.8 KΩ to 13.65 KΩ. If the multimeter
reads "OL", the thermistor is broken. If the
multimeter displays less than 5 Ω or "0",
the thermistor is shorted. If the thermistor
is broken or shorted, replace the motor.
d. Check continuity between the ground
(green/yellow) wire and each lead, one at
a time. The multimeter should display "OL"
for each measurement. If not, there is a
dead short in the motor and the motor
should be replaced.
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Model SB25