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  1. 99% is good enough! I will change the transistor and let you know what happens... Thank you very much for your help!
  2. I just disconnected the blue and purple connector from the PCB and connected it to the electronics fan connection; the fan spins so the wiring is right from one side to the other. I measured the voltage at the nozzle fan connector in the PCB and it is 19.4V when fan speed is 0, and 14.4V with speed at 255. As far as I know the fan should be spinning in any of both cases, right?
  3. Hello! This is not my first time here but I could not log in with my former user as it has an ! in it and it is not a valid character anymore... Yesterday my nozzle fan started failing on and off while printing. I realized it was the connector in the nozzle side. I had no time to make proper repairing son I just cut and soldered to continue printing. The fan no longer spins... I checked the fan works with a 9V battery and revised the wires which are ok. Measured the voltage in the wires and it is always around 14V, no matter if the fan is supposed to be off or at 255 speed. Is that normal? Could I have broken something in the electronics while repairing? Thanks in advance!
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