When you plug in the hotend 4 pin cable, can you verify all 4 pins are present? 1 or more pins easily can get pushed out of the connector, causing that issue. Hot End Connector - Pin Gone!
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When you plug in the hotend 4 pin cable, can you verify all 4 pins are present? 1 or more pins easily can get pushed out of the connector, causing that issue. Hot End Connector - Pin Gone!