Daikin VRV-WIII RWEYQ72PTJU Service Manual page 257

SiUS30-1301
CHECK 9
How to Check the Electronic Expansion Valve Coil
Remove the connector for electronic expansion valve (X7A) from PCB. Measure the resistance
value between pins and check the continuity to judge the condition.
Service Diagnosis
White (1)
Red (5)
Orange (3)
The normal products will show the following conditions:
1 No continuity between (1) and (2)
2 Resistance value between (1) and (3) is approx. 300 
3 Resistance value between (1) and (5) is approx. 150 
4 Resistance value between (2) and (4) is approx. 300 
5 Resistance value between (2) and (6) is approx. 150 
Troubleshooting by Indication on the Remote Controller
1) White
2) Yellow
φ1
M
φ3
3) Orange
4) Blue
φ2 φ4
5) Red
Brown Blue
Yellow
(2) (6) (4)
6) Brown
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