Lennox MPA012S4S-1L Service Manual page 136

L- I N
[ V2. 4] 2013- 9- 21
C N 3- 1 C N 3
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C N 2 _1
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C 13
ZR 2
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R Y4
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R 145 R 78
R 17
C N 31
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C N 16
E9
C N 21
Illustrative Drawing of Board Shown - Actual Unit May Differ
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C N 22
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C N 4
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Power ON
LED
MPA009S4S-1P and MPA012S4S-1P
PTC 1
C X9
AC L- O U T
R 124
R 125 R 119
R 150
C 110
C 72 R 136
C 418
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C 63
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C 61 C 59
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R 54
C 48
C 50
E37
C 15
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R 131
VD 2
C 80 C 75
I C 19 C 25 VD 1
R 139 C 81
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C 57
E27
C 27 C 31
C 64
C 38
C 41 C 43
C 74
C 65
R 76
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X1
R 70
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C N 11
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R 163
R 134
C 21
R 135
R 141 I C 17
R 157
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R 151
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R 129
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G N D
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R 64
C 46
R 117
C 8 C 19
R 91 R 6 C 6 C 24 C 1 C 22
R 104
R 94
C 86
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R 123
R 411 R 232
C 30
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R 84
R 96 _1
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R 86
C 413
C N 30
C N 6 D 1
J6 R 49 C 52 202302100880
I C 16
R 38 R 55
KFR 26W $BP2- 180( D YD C - 390- N 3) . D . 13. W P2. 1
Fault Code
LEDs
Lennox Mini-Split Service Manual / Page 136
BR 1
C N 32- 1
C N 32
C 40
+
E15
C 28
C 14
C 101
C 91
ZR 3
VB3 VB2 VB1
C N 9- 1
U V W
C N 9
C 56
C 55
C 54
E18
E21
C N 29
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I PM PFC 1
_1
D Z1
_1
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C N 28
C 411
C N 50