Blocked large dust filter.

Clean the large dust filter or replace with new one. See service manual chapter "Dust Filters".

Blocked small dust filter.

Clean the small dust filter or replace with new one. See service manual chapter "Dust Filters".

Ambient temperature too high.

Check the ambient temperature at the air inlets of the projector. Make sure that the ambient temperature does not exceed 35°C (95°F).

Defect temperature sensor.

Replace the temperature sensor (reference 16 image) which measures the heat sink temperature of the DMD of the blue channel.

Malfunction Cinema Control board.

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

Malfunction Light Processor.

Replace the whole Light Processor Unit. See service manual chapter "Light Processor replacement process". Contact Barco for further instructions to repair the malfunction Light Processor Unit.