@theBAHNFreak I had a similar Issue with a Toolboard 1LC v1.2 after disconnecting everything from the board I still got the same bad Vssa error so I checked the schematics and measured the board. I found that the Resistor R47 had a value in the range of 2.2kOhm instead of 10Ohm and replaced it. After that, the temperature reading on both temp0 and temp1 was working.
Posts made by Poglitst
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RE: Heater reads 2000° and error Bad Vssaposted in Duet Hardware and wiring