Pump inverter overheated.

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

2. Check the ambient conditions. Ensure that the ambient conditions are within spec. See installation manual of projector and chiller.

3. Check for blocked dust filters. Clean or replace filters when needed. See service manual chapter "Maintenance procedures".

4. Check inverter external condition (dust presence).

Too high motor load (defective Motor)

Replace Main Pump FRU. See service manual chiller.

Malfunction Pump inverter

Replace Pump inverter. See service manual chiller.