Board issues

[IvanRk]

hello
anyone can help with this issue ? Was browsing on the wiki and google about this problem, but having difficulties .

My A20M hotend suffer some kind the short brake, and, the screen start showing this non sense numbers, and the printer fail.
What was "burned" ? What need to be replaced ?

Thanks

[smoothdog]

Looks like your thermistor is not connected or being read. Check your connections and if all looks good try replacing the thermistor.