Thermistor issue with Rapido 2

Hello I just completed a new build of v-core 3.1 kit i bought last year. It came with Rapido 2 hotend and it came with RTD PT1000B "thermistor" It displays 159C all the time while IDLE I have been playing wit confing for ratos to read correct temperature but can't find solution for it. When i disconecct it it crashes the klipper so it is conncected to correct place. Can anyone help me with right confing?
7 Replies
TheTik
TheTik2d ago
If you hear up the nozzle briefly with a heat gun or lighter, does the temp increase?
sidowszy
sidowszyOP2d ago
it doesn't change value when heated by ligher, when i set temp in ratos it crashes, it don't detect any temp change i read 1,102 k ohm on the multimeter
TheTik
TheTik2d ago
Sounds like it isn't hooked up correctly then. If the temp doesn't change at all, I'd double check the pins and wiring
sidowszy
sidowszyOP2d ago
It’s wired to T0 right now as recommended in instructions and I can’t make it work using different kind or configuration. Could be that T0 doesn’t support this thermistor?
TheTik
TheTik2d ago
PT1000 is what tons of us are using, its definitely supported. Since you've got a multimeter, try measuring the resistance when you heat it up.
sidowszy
sidowszyOP2d ago
Ok I will test that on Friday. Could you help me to find a correct config code for this thermistor?
TheTik
TheTik2d ago
Do you have sensor_type: PT1000 in your config? If so, thats correct If the reported value isn't changing though, then it isn't hooked up right. If you had the wrong sensor type, you'd still get a change but it would be an offset and change differently (even backwards).

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