Yes that’s right. I fixed my 3D printer, finally, after weeks of being too lazy to. The fault was the wires supplying power to the extruder cooling fan had come loose from the main power supply where they were haphazardly spliced in. I’ve now intertwined those with the main power connection and soldered them in place, so they should be good to go now. Printing a lovely duo-tone whistle from Thingiverse to try it out and it seems to still be perfectly calibrated and everything. So… that’s a plus.
Fret no more, space cadets; I’m back in business over here.