Hue accessories exist to trigger automations. A dimmer switch's four buttons can each start a scene on a short press and a different one on a long press, configured in the Hue app under Accessories, and a motion sensor can turn lights on or off based on movement, with different scenes by time of day. Set time windows so lights come on dimly at night and brightly by day, and set the daylight threshold so the sensor does not act in bright rooms.
The checks in more detail
If an automation does not run, check the accessory is online, its battery is fresh, the Bridge is online and the automation is enabled. Check the time and location are correct, since time windows follow them. If buttons do the wrong thing after a reset, reassign them. If a motion automation does nothing, check sensitivity and that the sensor is not blocked or pointed at the wrong area. Combining a sensor and a switch in one room needs care:
a manual press can override the sensor for a while. Platforms like Apple Home and Alexa can run their own automations from the accessories, which may conflict with the Hue app, so pick one main place. Test each automation. Keep them simple. Change one automation at a time and wait a day before judging it. A rule that fires twice may have two triggers. Review rules each season.
A short time window that ends at the wrong hour is the most common reason lights fail to come on, so read each window carefully against the clock and time zone. Write down the exact behavior you want for morning, day, evening and night in each room, since automations built from a written plan are far easier to test than ones improvised in the app. A sensor and a dimmer in the same room work best if the dimmer sets the mode and the sensor obeys it, so decide which one has priority before building rules.
Differential
Likely causes of “Hue accessories routine, schedule or automation is not running”, and how to tell them apart
- 1
An accessory offline
What separates it The automation does not run because the accessory is offline with a weak battery or poor range
How to confirm Fix the accessory's battery and range so that it reports to the Bridge again
- 2
Wrong time windows
What separates it The wrong scene comes on at the wrong time because the time windows or location are wrong
How to confirm Correct the time windows and the home location so that the schedule matches your day
- 3
A reset accessory
What separates it The buttons do the wrong things after the accessory was reset and lost its assignments
How to confirm Reassign the buttons in the Hue app, choosing the scenes for each short and long press
- 4
Sensitivity or threshold
What separates it There is no response to motion because the sensitivity or daylight threshold is set wrongly
How to confirm Adjust the sensitivity and the daylight threshold until the sensor responds as you expect
- 5
Conflicting platform automations
What separates it The lights behave oddly because another platform runs conflicting automations for the same lights
How to confirm Keep one main place for automations and switch off the duplicates in the others
Before you touch a setting
Record this first — changing settings destroys the evidence
- The automation you set up and what it should do
- The state of the accessory, whether online and charged
- The time windows set for the automation
- The platform involved, if another app also runs automations
Try in this order
0 of 7 completedCheck the accessory is online
ReversibleCheck the accessory is online with a good battery and range, because an automation needs the accessory to report.
Check the Bridge
ReversibleCheck the Bridge is online, since accessories and their automations all run through the Bridge.
Check time windows
ReversibleCheck the time windows and the location in the app, because time based scenes depend on them.
Reassign buttons
ReversibleReassign the buttons after a reset, choosing the scenes for each short and long press on each button.
Adjust sensitivity and threshold
ReversibleAdjust the sensitivity and daylight threshold for a motion sensor until it reacts in the right conditions.
Keep one main place
ReversibleKeep one main place for automations, either the Hue app or one other platform, to avoid conflicts.
Test each one
ReversibleTest each automation one at a time, then extend it, so you can find any problem straight away.
Model-specific
What is true of this model and not of its siblings
- Devices this page covers
- Philips Hue Motion Sensor and Hue Dimmer Switch (v2), the battery accessories that pair with a Hue Bridge. Philips Hue writes one support article per topic; the notes name where the sensor's AAA cells and the dimmer's coin cell differ.
- Dimmer
- Four buttons with short and long presses.
- Sensor
- Time windows and daylight threshold.
- Tools and supplies
- The Philips Hue app on an up-to-date phone, a small screwdriver for battery covers, a paperclip or SIM tool for reset buttons, fresh batteries of the right type and a pen and paper for the model and software version.
- Repair cost
- Most fixes cost nothing. Figures: a Hue Bridge is $69.99 and a motion sensor originally launched at about $40. Coin cell and AAA batteries are inexpensive. Check the limited warranty first.
Stop boundary
When this stops being a self-service repair
- !If automations fail after checks, contact Philips Hue support
- !If the buttons do the wrong thing, reassign them in the app
- !If two platforms conflict, remove the duplicate automations from one of them
Evidence ledger
Sources behind this answer
Soft reset and factory reset.
Motion sensor troubleshooting.
Matter with and without a Bridge.
Bridge lights and updates.
The company and its products.
Exact questions
Common questions
Can each button have two actions?+
Yes, each dimmer button can have two actions, one for a short press and another for a long press.
Can a sensor use time windows?+
Yes, a motion sensor can use time windows, so it runs different scenes at different times of day.
Does a manual press override a sensor?+
A manual press overrides a sensor for a while, and then the sensor takes over again.
Why did my buttons change?+
Buttons change after a reset because the assignments are erased and go back to defaults.
Can platforms conflict?+
Yes, platforms can conflict when both Hue and another app control the same lights at the same time.