Stratasys uPrint, Service Manual, Page: 301 / 383

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M. Power UP / Boot
Chamber won't heat up:
1. Verify top and side panels and insulation are installed.
2. Verify chamber fans are operating.
3. Check J3 heater connector/pins on the PDB.
4. Heater bad. Check heater resistance - should be 36 +/- 5 ohms.
5. Relay failed on PDB, replace PDB.
Head won't heat up.
1. Low AC input power. Make sure system is NOT attached to an ext. cord/power
strip
2. Fuse on the 120 VDC supply is blown (on PDB).
3. Umbilical cable connector loose at head board - check to make sure it is fully
seated.
4. 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 sup-
ply
• If only the support LED (upper) is illuminated, replace the power distribution
board
5. 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.
6. T/C board is bad. Replace T/C board
7. Head Board is bad. Replace Head 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
10. Replace toggle head
No fans, lights, text and no
LCD back light (no nothing)
1. Verify AC power is present at outlet.
2. Verify circuit breaker is in the ON position
3. Check if the thermal snap switches are open. If snap switches are open, verify
chamber fans are operating correctly. Replace chamber fans.
4. 24VDC power supply is bad. Replace 24VDC supply.
5. Check cable from 24VDC supply to PDB.
6. PDB has failed, no 24 volt output. Replace PDB.
No fans, lights, text and LCD
back light is ON
1. Use TeraTerm and/or CFG File to check for additional error codes (root cause).
2. Check 24VDC at power distribution board, if not present replace 24 VDC supply.