Application Note #480
21
Technical Support — 800.523.9466
Troubleshooting
Symptom
Possible Cause
Solution
After installation or following power failure,
the Lights will turn on suddenly after the
Lights are manually turned OFF.
The Sensor takes up to 2 minutes to
perform a calibration following a power
cycle. If the lights are OFF and the
calibration completes while the space is
occupied, the Lights will turn ON
Wait at least 2 minutes for calibration to
complete. Refer to the instructions.
Change "Occupied Level" to "Preset". This
will cause occupancy detection to turn your
unit onto the last light level. It is less likely
that you will notice this issue, if you have
selected this setting.
After installation or after replacing the bulbs,
the Lights may not turn ON when turning
on the Lights manually or when the space is
occupied.
The Low-End Trim setting may have to be
adjusted.
Adjust the Low-End Trim from either the
shortcut menu or from the APM menu.
Refer to instructions to change custom
settings.
The bulbs may not be on the approved bulb
list
Used bulbs are have been approved. Find
the approved list for this product at
www.lutron.com/dimcflled
After installation or after replacing the
bulbs, the Lights may flash when turning on
the Lights manually or when the space is
occupied.
The Low-End Trim setting may have to be
adjusted.
Adjust the Low-End Trim from either the
shortcut menu or from the APM menu.
Refer to instructions to change custom
settings.
The bulbs may not be on the approved bulb
list
Used bulbs are have been approved. Find
the approved list for this product at
www.lutron.com/dimcflled
After installation or after replacing the bulbs,
the LEDs may appear to cycle, making the
Dimmer appear to reset. During this time,
the Lights may not turn ON or the Lights
may flash.
The Low-End Trim setting may have to be
adjusted.
Adjust the Low-End Trim from the APM
menu. Note: in this scenario the Low-End
Trim cannot be adjusted from the shortcut
menu. Refer to instructions to change
custom settings.
The bulbs may not be on the approved bulb
list
Use bulbs that are on the approved list. Find
the approved list for this product at
www.lutron.com/dimcflled
3-way switch does not turn the lights ON.
Multi-location / 3-way wiring may be
incorrect.
Refer to wiring diagrams in instructions.
The multi-location mode is set for
Companion Dimmer.
Change the accessory mode to 3-way
switch. Refer to instructions to change
custom settings.
3-way switch may have a locator light.
Replace the 3-way switch with one that
doesn’t have a locator light.
After installation, the 3rd LED will start
blinking, then the 2nd LED, etc.
A 3-way switch is wired to the blue wire but
the accessory mode is set to Companion
Dimmer. This causes the Dimmer to think
the toggle button is being held and will
activate the Delayed Fade To Off feature.
Change the accessory mode to 3-way
switch. Refer to instructions to change
custom settings.
Lights do not turn ON when space is
occupied.
Sensor mode is set to Manual-On
(Vacancy).
Refer to instructions to change custom
settings.
Sensor Mode is set to Auto-On Daylight
Sensing (ALD) and the light level in the room
is too bright.
Turn the lights on within 5 seconds upon
entering the room to change the daylight
threshold.
Sensor does not have full view of room.
Move objects blocking the sensor’s line-of-
sight.
Sensor mode is set to Off-While-Occupied
(OWO) mode, and the unit was recently
manually turned off.
Refer to instructions to change custom
settings, exit room and wait for sensor to
timeout, or manually turn light back on with
Tap button.
Multi-location / 3-way wiring may be
incorrect.
Refer to wiring diagrams in instructions.
Wiring of a 3-way mechanical switch with
this product is different than traditional
3-way wiring.
