Ender 3 Pro reboots
Ender 3 Pro with Marlin 1.0.1
Starts fine, Auto home fine, manually move axis no problem, Set offsets works fine, select "Print from TF when I select a program to run it squeals like a cat for 30 seconds and goes to the start screen.
I ASSUME this is a software issue since the other functions all work.
Looking for suggestions from people with more than my 30 days experience.
@tombogan03884 Only the squeal? Usually, it happens when the circuit is not working. Please check carefully again everything is connected well, although XYZ moves correctly. Because the sound may come from the heating model. When you select a program, the heating model is the first one that starts to work.
Oh THANK YOU !
Getting closer to the problem.
I tried pre heat hot end to pull out the filament with no problem.
When I tried "Pre Heat Bed" is when it alarmed .
All the connections seem tight and the wires do not look frayed, or pinched anywhere .
I also made sure there was no dirt, or debris in the machine.
My back ground is in Machining, so while I understand G Code I am at a complete loss about the wires that make it work.
What is my best next step ?
Is there a ground I should check ?
@tombogan03884 Well, there it is！A easy way to find out where is the problem. Swapping the nozzle and hotbed wiring which I indicated in yellow in the attached picture.
Go to the menu and increase the nozzle temp. If the hotbed warm-up without any alarm, that means the hotbed and its wiring are fine. The issue is your mainboard for the hotbed port. So you have to replace it with a new one.
If there is still an error, that means the hotbed and its wiring somewhere must be broken. Go replace it.
Thank you VERY MUCH !
Seems to be the heated bed wiring.
I will replace that.
Thank you again.