From Goose's Guide:Controller to Op Panel comm error - check connection between controller and op panel
Controller to Op Panel comm error - replace controller board
Controller to Op Panel comm error - confirm dip SW #1 is in the OFF position
Controller to Op Panel comm error - update system fw to 1.14.3 or higher & network docbox fw to 1.01 or higher
You may have damaged the BICU trying to replace the "fuse" or you may have failed to reconnect everything you disconnected. There may have also been additional problems with the BICU before you started.
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