Hello,
On my new duet 3 board, all four thermistor inputs constantly show -273 °C when running reprapfirmware using the M105 command, regardless of the attached resistor.

I Tried connecting

• Short Circuit (0 Ohm)
• 1k Resistor
• 100k Resistor
• 100k Thermistor
• Open Circuit

between the thermistor pins, with no success.

Also my continuity tester beeped between VSSA and Endstop GND, so I think the VSSA fuse is fine.

The rest of the board is working fine.
Is this a hardware issue or can this happen by falsely configuring the firmware?