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).

Blocked high density filters.

Check all high density filters. Replace filthy high densityfilters with new ones.

Malfunction air extraction system.

Check customer air extraction system for adequate extraction.The air extraction system must be capable of removing minimum 6,65m³/min or 235 CFM per installed DP-2000/DP-1500 digital projector.

Malfunction lamp anode fan or lamp cathode fan.

Check the speed and voltage of the lamp anode and lamp cathodefan. Replace any malfunction fan.