Geeetech

Hello, I have a Geeetech Aluminium Prusa i3

I was having a problem with my heat bed temperature reading where it was stuck on 69 degrees.I unplugged the cable from the board and it is still showing the same reading, when I did the same for the extractor nozzle thermistor, it reset to 0/0.

I checked my multimeter for the two, the nozzle thermistor was 4.7k Ohms. The heatbed thermistor was only 120 Ohms. Does this mean that the board is faulty? The rest of the board seems to work OK?

Hello

On my I3 Pro B have temperature sensot in the nozzle 100K ohm, but when i build my printer had some issues with this sensor in the nozzle. The worm witch fix sensor in the correct position make short cut. Try rememove this worm and measure resistance of thermistor. If will be different then 100K ohm must be raplacet.