short circuit with the heattbed

Hello ramps helprs,

I have a prablmo with TEMP reading on the ramps the temperature reading is stuck on a number I check the thermistor's both fine so Iam guessing I short some thing.
my mk2 hetedbed have couple of copper wires that were flash out by the movement of the platform and on top is a aluminum board so i think that the nozzle touch the aluminum board and close a loop some were? and one more thing my frame is acrylic.
so any one had this problem before if so can any thing can be done to save the ramps?

You have probably killed the ADC's on the mega...

There is no way to repair this

You may be able to ignore it and use another port.

On the board is T0, T1 and T2
Extruder is on T0
Heated bed it on T1
Nothing on T2 (unless you have second extruder)

If you can find any two that work, you can use them otherwise its time to get a new mega.

see pins.h for the definitions of which pin is used for what

Hi DUST

I did as you advice I change the pin on T0 to 15 and using by using a add on circuit I connect the heatbad to aux1 pins ,and now every thing work fine.

thanks for the help.