Trainee Guide TR-L2-M2000
Level 2 Maintenance Training – M2000 Dispensing Systems 4-2-38 P/N 73-0018-00 (Revision B)
Information Sheet 4-9-1
Height Sensor Troubleshooting
Symptom Possible Cause Recovery
Probe does not drop or
retract (HS-Series)
Check probe function:
 Push the probe up with
your finger
.
 If the green LED light on
the side does not turn ON,
the probe is not working.
- Call a Service
Technician.
Needle hits substrate
 Check if probe tip is lower
than the needle tip.
(HS-Series)
 Check LED on Height
Sensor to see if it is ON.
(LK-Series)
- Perform
Valve Offsets or
Calculate Master Offsets
in FMW or FmNT, or
Height Sensor Setup in
FMDOS.
- If the LED is not ON, call
a service technician.
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