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Appendix: Troubleshooting
Symptom
Lights are always OFF—
there is no glow at the
lamp ends, and no
flashing.
Lights are always OFF (or
locked at Low End)—but
there is a glow at the end of
the lamp.
Lights ON at Low End and will
not go any higher in intensity.
Lights always stay ON full with
little or no dimming.
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Possible Cause
• Power is OFF.
• System miswired.
• Wrong line voltage was applied.
• No Dimmed Hot signal.
• Fixture has Instant Start sockets.
• Wrong lamp type for the ballast installed.
• System miswired.
• Poor or no connection to sockets or lamp
pins.
• Lamps are too far from a grounded
surface.
• System miswired.
• Wrong lamp type for the ballast installed.
• The Wall Control is at Low End.
• The Occupant Sensor does not sense
motion and the Lighting Zone Controller is
set to go to Low End when the room is
unoccupied.
• Daylight Sensor connected to the Lighting
Zone Controller is not calibrated.
• System miswired.
• Magnetic dimming ballasts connected on
the same switch leg.
• Emergency closure open.
• 100 hour Burn-in Activation is enabled.
Solution
Verify breaker is ON.
Check system wiring, connection of socket
wires.
Check system voltage vs. ballast rating.
Check system wiring, measure voltages. See
Appendix: Voltage Map.
Change sockets to Rapid Start sockets.
Verify ballast lamp type matches lamp.
Check for proper ballast-to-socket wiring—
particularly the Yellow and/or Blue w/White
stripe wires. These wires must be wired in
parallel to two lamps (in one side, out the
same side to the next lamp), not in series.
Check for proper connection of wires to the
sockets and lamp pins to sockets.
Check for proper grounding of the fixture, and
proper space between the ground plane and
the lamp's entire length—must be within
1/2 in. +/- 1/4 in. (13 mm +/- 6 mm).
Check for proper ballast-to-socket wiring—
particularly the Yellow and/or Blue w/ White
wires. All socket wiring must have wires from
the ballast going to each side of the
socket—not both wires to one side. Check
that the Dimmed Hot signal varies as shown
in Appendix: Voltage Map.
Verify ballast lamp type matches lamp.
Change the intensity slider on the wall control.
Check the Occupant Sensor Wiring and see if
its LED lights when detecting motion.
Refer to the proper software Reference Guide
for calibration instructions.
Check that the Dimmed Hot signal is present as
shown in Appendix: Voltage Map. Check for
Dimmed Hot and Hot swapped.
Remove the magnetic dimming ballast(s) from
the circuit.
Check EMERG terminal block voltage to see if
Emergency closure is open. (See Appendix:
Voltage Map.)
Check to see if the 100 hour Burn-in feature is
activated indicated in the software, or leave
the lights on for 100 hours and burn-in mode
will automatically end.
Installation Guide for Lighting Zone Controllers
This page applies to:
Small
Std.
Panel
Panel
LZC1
37
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