I faced some problem with my 3D printer device. It seems the bed warms up without any problem, however, the hotend does not warm up!
Could you please help me identify what the problem is?
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I really hope the extruder doesn't warm up as this would be a problem with your stepper motor :)
I'm sure you mean the hotend doesn't heat up. This could be a number of things but i would start to double check the pinout in your code vs the pins on your mainboard and measure if it gives 12v/24v (depending on your PSU) output.
There's a lot more info required to properly help you. What board are you using? What OS are you using? Marlin or something else? Share the relevant code of the OS for the hotend config/pinout potentially share pictures of your wiring
First, I want to make sure if your hotend is really not heating up. If you are saying the numbers are not showing (like when it is heating, the number on display or octoprint says 0/180) this could be a Thermistor problem. Check to make sure if your hot end is heating up by putting a paper or filament under it. DO NOT touch with your hand.
Second, If your hotend is truly not heating up, then several things can be happening.