Fatal Error - temperature runaway

Please help with a problem I am having...I get a Fatal Error as follows:
This was happening with RepetierHost V2.0.5, so I installed the latest one, RepetierHost V2.1.0 and it still happens. Also, there was no runaway, but what is "..runaway on B"?

I am running Linux Mint with an MKS Sbase board.
Any help would be appreciated!


  • This error is reported by your printers firmware and has nothing to do with host software. Host is just nice enough to inform you about the fatal error. In this case your temperature was 28°C apart from the expected temperature, so firmware disabled everything for safety. For more details please ask Marlin users or just watch temperature curve to see what exactly happened.
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