Manual
11-8 Needle Sensor
Minor Troubleshooting
Table 11 -1 Troubleshooting Guide
Symptom Possible Cause Recovery
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
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