3-178
3.3 Trouble Shooting
3.3.9
Rack Auto Cleaning System Diagnostics
Perform Menu 0621 “Auto Cleaning
Output Measurement/Setting”.
Normal?
Normal
Abnormal
Is the harness between the auto washing
pump (PU720) and PDB7 on the PDB23
circuit board poorly connected
or broken?
Connect harness correctly,
repair or replace it.
Yes
No
Replace the auto washing pump (PU720)
and then perform Menu 0621 “Auto Cleaning
Output Measurement/Setting”.
Normal?
Normal
Abnormal
Replace the crossover rack P1/P2 auto
washing valve (S720) and then perform
Menu 0621 “Auto Cleaning Output
Measurement/Setting”.Normal?
Normal
Abnormal
Replace the crossover rack P2/PS1 auto
washing valve (S721) and then perform Menu
0621 “Auto Cleaning Output
Measurement/Setting”.Normal?
Replace the PDB23 circuit board.
Normal
Abnormal
Is the harness between the crossover rack
P1/P2 auto washing valve (S720) and PDB7
on the PDB23 circuit board poorly
connected or broken?
Connect harness correctly,
repair or replace it.
Yes
No
Is the harness between the crossover rack
P2/PS1 auto washing valve (S721) and
PDB7 on the PDB23 circuit board poorly
connected or broken?
Connect harness correctly,
repair or replace it.
Connect harness correctly,
repair or replace it.
Yes
No
END
END
END
Is the harness between the dryer entrance
rack auto washing valve (S722) and PDB7
on the PDB23 circuit board poorly
connected or broken?
Yes
No
END
Replace the dryer entrance rack auto
washing valve (S722) and then perform Menu
0621 “Auto Cleaning Output
Measurement/Setting”.Normal?
Normal
Abnormal
END