Troubleshooting; Led's - Carrier VAV Zone II Installation And Startup Manual

Troubleshooting

If you have problems mounting, wiring, or addressing the VAV Zone II, contact Carrier Control Systems Support.
NOTE To help you troubleshoot, obtain a Module Status (Modstat) from the controller and review the System Error
and Warning details.

LED's

The LED's on the VAV Zone II show the status of certain functions. Verify the LED patterns by cycling power to the
controller and noting the lights and flashes.
If this LED is on...
Power
Rx
Tx
DO#
CW
CCW
The Run and Error LED's indicate controller and network status.
If Run LED shows...
1 flash per second
2 flashes per second
2 flashes per second
2 flashes per second
2 flashes per second
2 flashes per second
2 flashes per second
5 flashes per second
VAV Zone II Controllers
Installation and Start-up Guide
Status is...
The VAV Zone II has power.
The VAV Zone II is receiving data from the network segment
The VAV Zone II is transmitting data over the network segment
The digital output is active
The actuator motor is turning clockwise
The actuator motor is turning counterclockwise
And Error LED shows...
1 flash per second, alternating
with the Run LED
Off
2 flashes,
alternating with Run LED
3 flashes,
then off
4 flashes, then pause
1 flash per second
On
On
65
Status is...
The controller files are archiving. Archive is
complete when Error LED stops flashing.
Normal
Five minute auto-restart delay after system error
The controller has just been formatted
Two or more devices on this network have the
same network address
The controller is alone on the network
Exec halted after frequent system errors, due to:

Controller halted

Program memory corrupted

One or more programs stopped
Exec start-up aborted, Boot is running
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Troubleshooting
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