Thermal runaway e1 ender 3 nozzle temp steady till it moves then nozzle temp drops and jumps all over then I get the thermal runaway. Also When wiring up to computer, it registers its there but it's unrecognized and won't communicate with it. I'm stuck. I don't have the money to throw at it and not sure how to check each part.
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Sounds like something is shorting on the thermister. Can you open the print head and look for bare wires or loose wires ? – Criggie Oct 12 '22 at 22:39
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1It looks like you are asking two separate questions. One is possibly answered in the duplicate question proposed by Criggie, the other one needs more information to help find a solution. – agarza Oct 13 '22 at 01:00
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1The title should be changed to ask a single simple question. – Ray Butterworth Oct 13 '22 at 03:05