Thermistor readout dying when heating up printer

[StaticRed]

Hello, so my printer is mostly working fine. But sometimes i have a weird error on my machine. When im heating up the hotend, the thermistor readout on the mainboard dies, and then i get a heating fault. So im not able to start a print or something similar. Im pretty sure its not a cable problem, because the problem only occures when the heater is heating. When i then reset the machine, the readout is normal again an it can read it out. Then if i try to heat it up again, the readout dies again. Im using a 24v 50w heater on my mainboard, and im sure that my power supply has enough power to supply that. So maybe something else is wrong. I also tried the other temp port, and it seemed to have fixed the problem, but after a while it occured again. So maybe someone of you have an idea.

[dc42]

@staticred the most likely causes are:

1. A bad connection to the thermistor at the hot end, which is temperature-sensitive.
2. An intermittent short circuit between one of the thermistor wires and something else (e.g. the hot end metalwork), which is temperature-sensitive.
3. Failing insulation in the hot end heater cartridge, possibly in combination with #2.

[StaticRed]

@dc42 seems like my thermistor has died randomly. Nevermind i will just by a new one and try it out.