Board tells me a constant of 15C on the hotend

[jonte0027]

I was just Printing as usual when the board told me that the hotend was 15C constantly(Almost burned my extruder but noticed it and turned it off). I've tried to swap the heated bed and the hotend thermistor and then the thermistor shows the right temeprature for the hotend but the wrong for the heated bed. This makes me exclude the thermistor as being deffect but something about the board since it shows 15C when the thermistor is completly unplugged. Help would be greatly appreciated! I also wounder if I could get a new one on like some warranty since I've only had the board for less than 2 months.

Thanks!

[William]

Hi,
You can measure the voltage on the three ports(T_BED,T_HE1,T_HE2) with a multimeter to see if there is a difference.