Hotend thermistor not changing
I recently moved my printer so decided to run self test and calibration again, all worked fine. However, when trying to print I noticed that the hotend temperature was not changing and stays at a constant 23 degrees.
I can feel heat coming off the hotend so it must be a thermistor problem. My question is why did the self test pass? I ran it twice and both times it passed.
Also, why would a broken thermistor give a fixed value, surely it would give no value?
Thanks
Re: Hotend thermistor not changing
Question: Is the thermistor still inside the heat block?
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Hotend thermistor not changing
Yes, I double checked that. The thermistor hasn't moved.
Re: Hotend thermistor not changing
Check the cables.
Re: Hotend thermistor not changing
mixed up the bed and the hotend thermistor at the rambo ?
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aaah, just a moment: not every print starts with heating up the hotend ! it depends on how the start script inside the gcode is structured.
is your "set temperature" still 0°C ? or is it something around 200°C and still nothing happens ?
might even be that your hotend heating cartridge is disconnected from the rambo... so that it really remains at room temperature.
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I really don't understand why this 4 month old thread has been resurrected.
I would imagine the OP has managed to resolve the problem by now.
Peter
@Peter: good point, didn't notice that 
dem inscheniör is' nix zu schwör...
Re: Hotend thermistor not changing
I really don't understand why this 4 month old thread has been resurrected.
I would imagine the OP has managed to resolve the problem by now.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…