HomeBrandsFormlabsProfessional Resin 3D Printers151
F
151
Easy Fix
Formlabs · Professional Resin 3D Printers
Ambient Temperature Too Low - Environment Below Minimum Operating Threshold
Quick Answer
Error code 151 on your Formlabs Professional Resin 3D Printers means: Ambient Temperature Too Low - Environment Below Minimum Operating Threshold. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Form 3+Form 3BLForm 3LForm 4Form 4BFuse 1+
Likely Causes
  1. Printer is operating in a cold environment below 18C (64F)
  2. HVAC system is directing cold air onto the printer
  3. Printer was just moved from a cold storage location and has not acclimated
  4. Internal heater cannot compensate for the extreme cold ambient temperature
How to Fix It
1
Move the printer to a temperature-controlled environment (recommended 18-28C / 64-82F)
2
Allow the printer to acclimate to room temperature for at least 2 hours before printing
3
Ensure the printer is not near air conditioning vents, open doors, or drafty windows
4
If the internal heater is functioning, allow it extra time to warm the resin before starting the print
5
Consider using an insulated enclosure around the printer for cold workshops
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Room heater for the printing environment
Insulated printer enclosure (aftermarket)
Related Error Codes
100101102110111
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