Hitachi UX Twin Nozzle - Page 264

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6.2.11a Multi DC Power Supply1 Fan Fault
Yes
Connect the connector.
Multi DC Power
Supply1 Fan Fault
Is the multiple power supply1
fan running?
No
Is the EZJ133 CN2 connector or
multiple power supply CN4
connector disconnected?
Yes
Replace the EZJ133 board. *1
No
END
Is the problem fixed?
No
Yes
Replace the multiple power supply1
(*1): When you replace EZJ133 board, refer to [Replacement procedures of
EZJ133 board] in “3.3.1 EZJ133 board (MPU board)”.
[Caution]
Be sure to check that there is no wrong connection of harnesses by
referring to [Connector numbers and Identifying method of harnesses] in
“3.3.20 Electrical Connection Diagram”.