Trainee Guide TR-L2-M2000
Level 2 Maintenance Training – M2000 Dispensing Systems 4-2-40 P/N 73-0018-00 (Revision B)
Information Sheet 4-10-1
Needle Sensor Troubleshooting
Symptom Possible Cause Recovery
During Setup routine, error
indicates that the tactile sensor
is already engaged.
Tactile sensor “hat” is stuck in
the down position.
- See Exercise Sheet 2-9-2,
Tactile Sensor Error, on
page 2-2-70.
LED does not come ON during
routine.
Needle Sensor malfunction. - Call a Service Technician.
LED is constantly ON. Dust in the sensor.
- Clean sensor slots with a
soft cloth or by blowing air
through them.
Needle jams too far into the
needle sensor slot.
Height change beyond
capability.
- Rerun Needle Sensor
Setup. See Exercise Sheet
2-9-1 on page 2-2-68.
Needle-to-Height Sensor offset
is inaccurate.
Fluid build-up on probe tip
caused inaccurate Height
Sensor calibration.
- Clean the probe tip with a
soft cloth and recalibrate the
Height Sensor.
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