AM7A0C36H31-SF-1A
12
AFC STATUS LED
ON SOLID
Power up and during last 4
fault history sequence
1 Flash
Stand‐by or idle
Multiple Flash
CFM demand ‐ 1 flash per 100
cfm
AFC STATUS LEdS
Unit LED
1 Flash
Normal
Rapid
Communication Busy Error
Off
No power
AFC
Fault LED
Description
OFF
No Fault
Solid On Internal control failure
1
24VAC fuse blown
2
PM Data Corrupt or Missing / Motor Mismatch
4
Blower communication error
5
Internal communication error (refer to Unit LED on EVC, EHC, HHC)
(1)(2)
11
EVC has detected a fault condition (refer to Fault LED on EVC)
12
EHC / HHC has detected a fault condition (refer to Fault LED on EHC / HHC)
1) If Unit LED on AFC is flashing 2 times/second, AFC is causing the error.
2) Unit LED on suspect control will flash 2 times/second. All LED's will be off if power is not applied.
AFC FAULT COdES
FAULT
UNIT
TRANE U.S. INC.
HUM
BAR CODE
STATUS
R55
R49
D18
R80
T2
T1
R
60
R70
R66
R82
R74
R7
Q8
J6
J9
D
22
D
25
D28
C52
R73
1
J8
Yo
R
B
O
Y1
J1
W2
W1
R63
R62
R56
D21
D20
C32
C33
R38
R16
R28
R27
R26
D12
D5
D11
D10
C16
C17
R50
R45
R85
R84
D16
D15
D31
D30
C26
C27
C44
C45
D32
D33
R94
R100
R101
K2
R69
DH Jumper
Yo Jumper
W2
W1
FAULT
UNIT
STATUS
STATUS
LED
FAULT
LED
UNIT
LED
