SiUS30-1301
Troubleshooting by Indication on the Remote Controller
Service Diagnosis
249
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.
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
CHECK 9
1) White
2) Yellow
3) Orange
4) Blue
6) Brown
5) Red
White (1)
Red (5)
Orange (3)
φ
1
φ
3
φ
2
φ
4
M
Yellow
(2)
Brown
(6)
Blue
(4)