LUTRON
GRX LEDs
OK
OK
OK
OK
OK
OK
OK
OK
N/A
Off
OK
Off
Off
Reference Sheets for GRAFIK Eye Dimming Panel
38
Troubleshooting Guide
Troubleshooting Guide
Reference Sheet
*
An accurate “Flutter” rate requires that the circuit be cycled OFF, then ON to high end from the appropriate Control Unit.
Symptom
Normal Operation
as Reference
All dimmers
controlled by
1st zone
All Dimmers on
FULL or OFF only
No Dimming -
Always Full
No dimming -
Level Frozen
Controls Dead
Dimmer Card LED
“Heartbeat”
(~1 per sec)
“Heartbeat”
(~1 per sec)
“Heartbeat”
(~1 per sec)
“Flutter”*
(~5 per sec)
“Light House”
(~1 per 7 sec)
ON continuously
“Light House”
(~1 per 7 sec)
‘Power OK’ LED
On
On
On
On
On
On
N/A
On
On
Off
Off
Circuit Selector
‘Data OK’ LEDs
“Heartbeat”
(~1 per sec)
“Heartbeat”
(~1 per sec)
“Heartbeat”
(~1 per sec)
“Heartbeat”
(~1 per sec)
“Heartbeat”
(~1 per sec)
“Flutter”*
(~5 per sec)
N/A
Off
Off
Off
Off
Circuit # Display
OK
OUT
"LC"
OK
OK
OK
OK
OK
N/A
OK
OK
OK
Out
Possible Cause/Solutions
All LEDs show OK,
see below for other suggestions
Push any button on Circuit Selector
(display turns off in 20 minutes)
Circuit Selector Locked out
Circuit Selector not set up - see instructions for zone
assignment.
Circuit Selector not set up - see instructions for Load
Types.
Dimmer in Bypass - remove Bypass Jumper after
loads have been proven
Dimmer defective - contact Lutron
2-wire Panel Control Harness disconnected at the
bottom of the Circuit Selector
Wiring of Terminals 3 and 4 flipped.
GRX connector unplugged at Control Unit.
Dimmer circuitry locked up. Turn off circuit breaker to
reset the dimmer. Notify Lutron.
Wrong Baud Rate—Notify Lutron.
GRAFIK Eye Control Units not addressed.
Miswire to control link wires
1, 2, 3, and 4
No data on Control Link open wires
3 or 4
Miswire shorting 24VFW (Terminal 2) to Common
(Terminal 1) or ground
Control Breaker Off
