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.