Environmental conditions of the Cooler Module are not within spec

Check environmental conditions. Ensure that the environmental conditions comply with the installation specifications. See projector installation manual for detailed installation requirements.

In case of a new installed Cooler Module, let the complete system acclimatize.

Blocked air inlet

1. Check airflow of the Cooler Module. Ensure that the installation requirements are fulfilled.

2. Check for blocked dust filters. Clean or replace filters when needed. See service manual chapter "Replacement of a Cooling Unit Filter".