Pump Motor Fault; Cooling Fan Fault - Hitachi PXR Service Manual

7.2.20 Pump Motor Fault

Pump Motor Fault
Pull out and insert the
connector CN2 of the EZJ93
board and the pump motor
connector.
Does the fault recur?
Yes
Replace the pump motor.
Does the fault recur?
Yes
Replace the EZJ93 board.

7.2.21 Cooling Fan Fault

Cooling Fan Fault
Disconnect the EZJ93 board
CN2 connector and relay
connector reconnect it.
Does the fault recur?
Yes
Replace cooling fan.
Does the fault recur?
Yes
Replace the EZJ93 board.
No
No
Resume the
operation
No
No
Resume the
operation.
7-21
.