Damaged or malfunctioning components may cause your Form Cure L V1 to fail to power on, freeze, not initialize, shut down unexpectedly, or experience display issues. Although these symptoms might seem similar, they usually result from different underlying causes, most often related to the display, motherboard, or the system on module (SOM).

• Form Cure L V1 display does not turn on
• No activity from lights on the Form Cure L V1 motherboard
• Form Cure L V1 is unresponsive after being powered on

• Defective display assembly
• The display is not functioning and shows no image. The Form Cure L V1 is otherwise operating normally.
• Display cable not seated properly
• Damaged or faulty motherboard
• Damaged or faulty system on module (SOM)
• Damaged or faulty power supply

1. Try connecting the machine to a different outlet or use another power cord, if one is available.
2. Connect the Form Cure L to a computer with PreForm via a USB cable. Open PreForm, click File > Accessories, and search for your Form Cure L.
• If the machine appears in PreForm, the display assembly may need to be replaced. The display assembly is available for purchase on the Formlabs Store. To replace the component, follow the instructions in the guide Replacing the Form Cure L V1 display assembly.

5. With the top shell still removed, power on the machine and check the status of the power LEDs on the motherboard. Do not touch any components within the Form Cure L V1 while it is powered on and the shell is removed.
• If none of the LEDs are lit, the power supply may need to be replaced. Form Cure L V1 power supplies are available for purchase on the Formlabs Store. To replace the component, follow the instructions in the guide Replacing the Form Cure L V1 power supply.
• If the 24V, 5V0, and 5V0 EXT LEDs are lit but the 3V3 LED or the single green LED on the top edge of the SOM is not lit, the SOM may need to be replaced. Contact Formlabs Support.
• If the 24V LED is lit but the 5V0 or 5V0 EXT LED is not, contact Formlabs Support or your certified service provider.

6. If the power LEDs are all lit properly, the issue may be that the display cable is not properly seated. If the motherboard cannot communicate with the display, the machine will not fully boot. Locate the display cable connector, positioned on the left side of the motherboard motherboard. Carefully remove the display cable and inspect the pins on the display cable connector to ensure that none of the pins are bent. If the connector is damaged, contact Formlabs Support or your certified service provider.