Hello TAZ user,

We have received reports of hot end failures from a small number of TAZ users with 24v systems. This includes the TAZ 3 model and TAZ 1 or 2 versions that have been user upgraded to 24V volts. These failures are characterized by a sudden failure of the hot end.

After a thorough investigation, we have determined that in some cases the default 24v firmware settings can cause the hot end heater resistor to fail over time. We have tested and verified a software-based solution. We are recommending that all TAZ 3 users upgrade the Marlin firmware with the update instructions found here: ohai-kit.alephobjects.com/project/marlin-resistor-update/

If you have had a hot end failure and have not already been assisted, please contact customer support at support@lulzbot.com or 1-970-377-1111 during business hours, M-F 9am-5pm EST.

If you have any questions or would like assistance in upgrading the firmware, please do not hesitate to contact our support team using the contact information below.

1-970-377-1111 x610
support@lulzbot.com