Malfunction SMPS module. All other fans also report voltagelow error.

Replace the SMPS module.

Damaged insulation of the wire unit (reference C ) of the cathode fan (reference FC ).

Check the insulation of the wire unit of the cathode fan. Thecathode fan is located between the lamp compartment and the Input& Communication Unit.

1. Repair the insulation of the wire unit using shrink sleeve.

2. If not repairable, replace the whole wire unit and/or fan.

Malfunction Fan & Motor Control board.

Replace the Fan & Motor Control board.

Malfunction Power Backplane (bad connection)

Replace the Power Backplane.