Hey all, so I’ve been having some problems with my bed not heating. I ran though all the usual continuity tests and from power supply to the bed it looks fine. I checked all of the fuses and they seem fine. I then checked the voltages across the machine; the power supply is outputting 24V like it’s supposed to, but the output from the board to the bed heater is only 2V. I upgraded to a new RAMBo 1.4 board this past fall and haven’t had any problems until now (it has less than 20 hours of printing on it so far).
Reach out to the support team through LulzBot.com/Support. Include as much information as you can, a brief history and results of what you’ve tested, and the console output of M115 (firmware info).