100
Moderate
Formlabs · Professional Resin 3D Printers
Laser Module Failure - Laser Diode Not Emitting or Output Degraded
Quick Answer
Error code 100 on your Formlabs Professional Resin 3D Printers means: Laser Module Failure - Laser Diode Not Emitting or Output Degraded. This is usually fixable — see the step-by-step guide below.
Likely Causes
How to Fix It
1
Run the laser test from the printer menu: Settings > Diagnostics > Laser Test
2
Contact Formlabs support and provide the diagnostic report from the printer dashboard
3
Check the laser module cable connections if comfortable opening the printer (warranty consideration)
4
Review the laser usage hours in the printer diagnostics page on the Formlabs Dashboard
5
Do not attempt to replace the laser module yourself; this requires factory calibration by Formlabs
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Replacement laser module (Formlabs service part, requires professional installation)
Laser calibration service from Formlabs
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