Stratasys uPrint, Service Manual, Page: 299 / 383

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Head not maintaining tempera-
ture.
1. Low AC input power. Make sure system is NOT attached to an ext. cord/
power strip
2. One of the four heaters is bad. Check resistance of heaters should read about
92 Ohms
3. Umbilical cable connector loose at head board - check to make sure it is fully
seated.
4. T/C board is bad. Replace T/C board
5. Head Board is bad. Replace Head Board
6. If head board with LED’s is present, check model and support 120VDC LEDs at
head board.
•
If both model (upper) and support (lower) LEDs are illuminated, head
heater is bad. Replace head.
• If only the model LED (lower) is illuminated, replace the 120VDC power
supply
• If only the support LED (upper) is illuminated, replace the power distribu-
tion board
7. If head board with LED’s is not present, use volt meter to check for 120 VDC at
head board.
•
If 120VDC present at both model and support side, heater is bad.
Replace head.
• If no 120VDC at support side, replace 120VDC power supply.
• If no 120VDC at model side, replace power distribution board.
8. Check ground between Toggle Plate and Head Board. If open, check for
missing washers on head.
9. The heater wires in the umbilical cable are broken.Replace cable.
10. Head T/C is crushed. Check by ohming from the T/C connector pin to the
head body. Reading should show open. If not, replace toggle head.
11. Replace toggle head
Pausing during build and tem-
peratures are correct.
NOTE: Pausing may be caused
by multiple carrier read/write
errors, not temperature issues.
1. Check CFG for multiple EEprom write errors. If errors are noted:
a. Select Resume. (from display panel)
b. Unload/Reload carrier
c. Replace spool
d. Replace carrier
e. Replace material bay
STOPS during build, display still
shows building, does not start to
build again.
1. Cycle power
2. Reprocess and re-send the part
3. If issue continues replace SBC