Blocked Cathode Fan

Remove the Light Source and check if the Cathode Fan is not blocked. Ensure that the Cathode Fan can turn freely (reference 1 image).

Damaged wire

Remove the Cathode Fan assembly and check if the wire of the Cathode Fan is not damaged. Repair if possible, otherwise replace with new one (reference 3image).

Cathode Fan end of life

Replace the Cathode Fan. See service manual chapter "Replacement of the Anode Fan".

Malfunction Cinema Controller

Replace the Cinema Control board. See service manual chapter "Replacement of the Cinema Controller".