The liquid cooling circuit of the Light Processor is mistakenly excluded from the main liquid cooling circuit. Most likely the other DMD temperatures are too high as well.

1. Check if the DMD cooling circuit is correctly connected with the DMD cooling expansion module of the chiller.

2. Check if the cooling circuit inside the Light Processor compartment is correctly connected.

3. In case of a 45L or 60L projector model, check if the small Airdryer is included in the cooling circuit.

Malfunction small Airdryer. The other DMD temperatures are too high as well (only for 45L or 60L projector model)

Check for warnings and errors related to the small Airdryer and resolve these first.

Malfunction Heat Exchanger. The other DMD temperatures are too high as well (only for 22L or 30L projector model)

1. Check if the Heat Exchanger inside the Light Processor compartment is not blocked.

2. Check for errors related to the Heat Exchanger (e.g. fan) and resolve these first.

The wires of the temperature sensor at the front of the DMD is mistakenly switched with one of the wires of the other temperature sensors of the Light Processor Unit.

Check if all wires of the temperature sensors of the Light Processor are plugged into their respective sockets on the Signal Backplane.

Defect temperature sensor which measures the temperature at the front side of the DMD.

Replace the whole Light Processor Unit. Contact Barco for further instructions to repair the malfunction Light Processor Unit. It is too critical to replace this temperature sensor in the field. The replacement of this temperature sensor must be done at factory or at an authorized service center. See service procedure "Light Processor replacement process".