Required to swap out printhead (Ended 5 Pro), PROBLEM!
Required to swap out printhead (Ended 5 Pro), PROBLEM!
Could you kindly assist with the tricky replacement? I appreciate your help, Joe.
Sorry, I'm still having trouble with the forum. I thought so too! It seems like just a few screws and two wire connections should be enough, right? Installing the new head was straightforward. Then came the two cable connections—my printer coil connection worked fine, just a wire acting as a heater. I soldered it in and covered the joints. The next step was the two-wire thermistor connection. Now I'm confused. Since there were no instructions for the replacement head, I had to assume it was just soldered together and insulated. Ready for testing! Powered on, everything looked okay at first, but I tried to adjust things and got unexpected results. Then I checked the basic screen and realized I missed something: the nozzle was showing 386°F, which didn't match the actual temperature. I wondered if the thermistor was affected by polarity or if the heating circuit couldn't reach that high. I tried swapping the connections and restarted the system, but it still reported 385°F. The system asked me to RESET. I don’t recall seeing that option anywhere, and I couldn’t find it in any menu. Now I’m stuck—system seems broken, and I don’t know what to do next. Thanks for any help you can offer! Joe...
A thermistor functions as a resistor that changes its value with temperature. If the new one shows a different resistance, you’ll need thorough calibration. Alternatively, it might be due to poor solder or damaged wire causing higher resistance. Can you recover the thermistor from the old print head?