Hitachi IJ UX Service Manual page 240

6.2.21 Pump Motor Fault
Pump Motor Fault
Pull out and insert the connector
・CN13 of the EZJ126 board
・CN1 and CN3 of the EZJ126 board
・pump motor
t
Does the fault recur?
Replace the pump motor.
Does the fault recur?
No
Yes
No
Yes
Yes
Does the connection
harness have electrical
continuity?
Replace the connection harness
Does the fault recur?
Replace the EZJ126 board.
6-22
No
No
Yes
Resume the
.
operation