my mendel is finally ready to go, however the thermistor measures a temperature of about 800c as soon as i hit the "switch heater on" button. I guess this is also the reason why the wire doesn't start heating.
I have double checked if the wires are connected correctly and there is no short-circuit. I have uploaded the latest firmware for gen6 that works with the g550 thermistor, so the thermistor settings should also be ok.
any suggestions?