Geeetech

Jup i always disconnected the printer from the wall outlet

Jup, Always cut the power to the power supply before unplugging anything etc.

I have run into a problem as my extruder motor just stopped working two days ago.
I had to disassemble the hotend/extruder due to a clogged nozzle, but after putting it back together, the extruder motor didn't spin.
I tested the motor+wires by changing it with the X motor and there the motor was ...