Carrier Zone Ctrl II - Troubleshooting; Leds

Troubleshooting
Zone Ctrl II and
VAV Zone II Secondary Duct Installation and Start-up Guide CARRIER CORPORATION ©2019
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If you have problems mounting, wiring, or addressing the Zone Ctrl II, contact Carrier Control Systems Support.
LED's
The LED's on the Zone Ctrl II show the status of certain functions.
If this LED is on...
Status is...
Pwr
The Zone Ctrl II has power.
RX
The Zone Ctrl II is receiving data from the network segment
TX
The Zone Ctrl II is transmitting data over the network segment
Run
See table below.
Err
See table below.
BO1
The binary output is active
BO2
The binary output is active
BO3
The binary output is active
CW
The actuator motor is turning clockwise
CCW
The actuator motor is turning counterclockwise
The
Run
and
Error
LED's indicate controller and network status.
If Run LED shows...
And Error LED shows...
Status is...
2 flashes per second Off Normal
2 flashes per second 2 flashes,
alternating with
Run
LED
Five minute auto-restart delay after system error
2 flashes per second 3 flashes,
then off
The controller has just been formatted
2 flashes per second 4 flashes,
then pause
Two or more devices on this network have the
same ARC156 network address
2 flashes per second 1 flash per second The controller is alone on the network
Troubleshooting