Mitsubishi Electric PURY-P200 Service Handbook page 178

<Troubleshooting flow chart for solenoid valve body>
Start
Check that the connector and the terminal are not
disconnected, and check the color of the lead wire
visually.
Intermediate connector
Brown
Red
To
Blue
LEV
Orange
Yellow
White
OK?
YES
Pull out the connector from the board, and check that
the electricity runs with a tester.
The wiring side of CN05 and 07: Among 1, 3 and 5,
and among 2, 4 and 6
OK?
YES
Check the resistance between each coil with a
tester (between red and white, red and orange,
brown and yellow and brown and blue), and
check that the resistance is 150
OK?
YES
Control board
2 Brown 6
5 Red 5
1 Blue 4
3 Orange 3
4 Yellow 2
6 White 1
NO
Fix the fault.
NO
Fix the fault.
within 10%.
NO
Replace LEV.
- 175 -
When LEV is fully closed: tick sound
When LEV is fully open : no sound
Check the above.
NO
OK?
YES
Check that there is no valve leak in
LEV.
NO
OK?
YES
Connect the LED
for check, which is
as shown in the
right figure, to the
board connector,
and check that the
LED keeps lights
10
on for 10 seconds.
NO
OK?
YES
Completed
Replace LEV.
Replace LEV.
6
5
4
3
2
1
LED
Replace the
applied board.