No connection with Fan Interconnection Board

Check / reseat all the wiring of the Light Source Fan Interconnection Board on top of the light source.

First install of Light Source

Upgrade the software. See procedure "Software update via Communicator (DC update companion)".

Malfunction Light Source Fan interconnection Board

Replace Controller board. See service procedure "Replacing the Light Source Fan Interconnection Board".

Malfunction LCB

Replace the Laser Control Board (LCB). See service procedure "Replacing the Laser Control Board (LCB)"