Elitech FreezePoint 6000 Series User Manual page 68

Section 7: Troubleshooting
Error description
No crystallization * or
Poor ice crystal
formation in upper
cooling system
Printer does not print
Measurement procedure
takes longer than usual
Spontaneous
crystallization*
Possible Cause
Peltier element defective Replace upper cooling system **
Cable connection
between cooling system
and PCB defective
Initiation needle too
long or too short
Initiation needle
not deburred
Initiation needle bent
Initiation needle
does not move
Initiation needle
disengaged from
motor or stuck
Error in rotation of
motor disk (initiation
needle drive)
Paper roll is used up
Ribbon is empty
Fan is defective
or obstructed
Peltier element
is defective
Sample not prepared
correctly
Thermistor probe not
aligned correctly
Elevator moved
up by user
Remedy
Adjust initiation needle to correct
length ( page 73)
Debur initiation needle
using fine sandpaper
Manually bend initiation needle
so that it is vertical, replace if
necessary ( page 72)
Verify free movement of initiation
needle ( page 74)
Align initiation needle ( page 72)
Correct length of initiation
needle ( page 73)
Check if light barrier is located
properly and replace if necessary **
Tighten motor disk
Replace paper roll ()
Replace ribbon ()
Check if fan is operational and
remove any foreign objects
Replace fan **
Replace lower cooling system **
Use sample according
to performance data of
device ( page 11)
Align thermistor probe
( page 78)
Leave the elevator in the
lowered position during the
measurement procedure
Personnel
Service technician
Service technician
User
Service technician
User
Service technician
User
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