TAM7-SF-2E-EN
23
TAM7 LED Codes
Each TAM7 Control Board has three LEDs that provide visual feedback on the current
operating state of the unit.
The Green LED displays current system status, the Blue LED reports on system
communications and the Red LED reports on current and historical faults.
Click or Scan to see a video on reading
the TAM7 Control Board LEDs
AFC STATUS LED (GREEN)
DESCRIPTION
FAULT
UNIT
TR ANE U.S. INC.
H
UM
B
AR CODE
S TATUS
R55
R49
D18
R80
T2
T1
R
6
0
R70
R66
R82
R74
R7
Q 8
J 6
J 9
D
2
2
D
2
5
D28
C52
R73
1
J 8
Yo
R
B
O
Y1
J
1
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 J u mp e r
Yo J u mp e r
W2
W1
FAULT
UNIT
STATUS
STATUS
LED
FAULT
LED
UNIT
LED
ON SOLID
Power up and during last 4 fault history sequence
1 Flash (per second)
Stand-by or idle
Multiple Flash
CFM demand — 1 flash per 100 cfm
Unit LED (BLUE)
DESCRIPTION
1 Flash
Normal (1 flash every 4 seconds)
Rapid
Communication Busy Error (2 flashes per second)
SOLID ON
Communications cannot be established with the AFC
Off
No Power
AFC FAULT LED (RED)
DESCRIPTION
Click or Scan to see a video on reading
Airflow Control Board LEDs
OFF
No Fault
Solid On
Internal control failure
1
24VAC fuse blown
2
PM Data Corrupt or Missing / Motor Mismatch
4
BLOWER COMMUNICATION ERROR (STATUS LED will be on
SOLID)
Click or Scan to see a video on
Troubleshooting Blower Communication
Faults
5
Internal communication error (refer to Unit LED on EVC,
EHC, HHC)
(a) (b)
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
(a)
If Unit LED on AFC is flashing 2 times/second, AFC is causing the error.
(b)
Unit LED on suspect control will flash 2 times/second on the suspect control.
N
No
otte
e:: All LED’s will be off if power is not applied.
