Re: print bed temperature went crazy! Please help
Thank you,
Since I know the thermal fuse has burned out, is there any way I can check the FB1? Just check if it is open circuit?
This part is just a noise filter for ground so it won't have any voltage differential across it. You could check for continuity. Although your board should still work even if this was blown.
I just wanted to post and say that this thread was very helpful in identifying the same problem in my workbench printer as well. I contacted solidoodle support for a replacement board. If this is a reoccurring problem solidoodle may want to look into the cause of it.
Always happy to help. I'll look into specs and also keep an eye out and ask support if this is becoming a common issue and decide if I need to make a design change. It should be as simple as using a slightly higher rated fuse to handle the current but also low enough to protect the rest of the board.
