Check SiAF332111E
358 Part 6 Service Diagnosis
6.18 Electronic Expansion Valve Coil Check
CHECK 18 Remove the connector for electronic expansion valve from PCB. Measure the resistance value
between pins and check the continuity to judge the condition.
The normal products will show the following conditions.
Outdoor unit RXMQ6/8AR
RXMQ10/12AR
Indoor unit FXFSQ-AR, FXMQ-PB
Measuring points
1-6
2-6
3-6
4-6
Judgment criteria
(White) 1
(Yellow) 2
(Orange) 3
(Blue) 4
— 5
(Red) 6
X22A (Y2E) for 6 HP
35-55
(Orange) 1
(Red) 2
(Yellow) 3
(Black) 4
— 5
COM+ (Gray) 6
X22A (Y2E) for 8 HP
X25A (Y4E)
Measuring points
1-6
2-6
3-6
4-6
Judgment criteria
(White) 1
(Yellow) 2
(Orange) 3
(Blue) 4
— 5
(Red) 6
X23A (Y1E)
X21A (Y2E)
35-55
120-180
Y1E Y2E
Measuring points
1-2
1-3
1-6
2-4
2-6
Judgment criteria
No continuity
92
46
92
46
(1) Orange
(2) Red
(3) Yellow
(4) Black
(6) Gray
(5) —
Orange (1)
Gray (6)
Yellow (3)
1
3
Red
(2)
Black
(4)
2 4
M
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