Lennox MPA012S4S-1L Service Manual page 138

Fault Code
LEDs
CN17
T3/T4
R38
R31
R39
R6 D5
E2
R34
E11
E8
E10
D15
D13 PAI QI
R5
CN7
R16
E4
E6 E7
E5
C73
CN26
C54
D8 D11
D7
TestPort
D12
R79
CN15
C55
T2B
C43
R106 R60
R105 D28
CN28
D27
R104
R107
C79
C9
R108
P E Q
IC9
C28
C23
R103
C21
R57
R22 R56
C78
R55
C47
R15
R65
D6
D9
R9
CN12
C61
CN14
D20
R4
CT1
CompTop
LOW/HIGH
CONdebug1
15
1
2
16
L-OUT
D3
RY2
CN29
202302130895
N-OUT
CE-KFR80W/BP3T4N1(DC MOTOR)-310.D.03.WP1-1
C48
C52
C6
L1
Illustrative Drawing of Board Shown - Actual Unit May Differ
C
D
CN24
CN22 CN19
C62
IC17
IC1 IC6
1 E9
1
C24
R83
CN21
R102
C71
IC15
TO-DRIVE R88
R77
Q4
RUN
LED1
CN27
R120
R86
R99
1
PFC-CONTROL
E14
X1 R89
C49
1
R24 R27
IC14
C72
C67
SW1 C16
R33
C20
R52
C40
C77
E13
1
1 R54 R37
R35
R53
C26
R42 C30
C60
D17
IC11
R30
R41
C76
R90
1
C38 R50 R46 C32
D1
R94
E1
R48
E12 C37
R51
C75
1
IC16
1 R58 C41
C44
R61
R72 R67 C46
R45
D2
R75
R63
C51
C33
R44
C10
RY1
RY3
D4
R7
PTC1
R8 Q1
C3
C5
C7
L2
MPA024S4S-1P
CN38
C83 E28
B A
CN18
17V N-
R112
R114
R113
C64
IC32
IC3
C63
C82
R115
Q5
R116
R118 R117
1
L30
Q3
R100
E31
C53
C81
DSP1
C58
CN39
Q2
R73 R76 R78 R80 R96
P+
N-
R29
IC2
R25 CN16
C19
IC4
D31
D10
S
1
C18
IC5
R40
CN10
R36
C27
CN20
C29
IC7
D14
D32
1
R49
IC8
C34 CN23
R47
C36
IC10
D16
D33
1
CN25
R64
IC12 R59
C42
C45
IC13
D18
D34
1
C85
CN1
CN2
C11
4-WAY N
FUSE1
CN6
CN5
HEAT1
N
T5A 250VAC
CN9
CN8
HEAT2
N
P2
RY4
C2
AS1
P-1
GND
C8
ZR3
C4
Lennox Mini-Split Service Manual / Page 138
DZ1
E33
IC18
R111
C80
DC MOTOR
CN37
R98
E27
S-D
S-C
D30
S-B
S-A C84
P-2
GND
P1
L-IN
CN3
ZR1
CN4
N-IN
ZR2