This guide is for anyone whose Hue Tap dial switch has stopped controlling their lights. The steps come from the FAQ on Hue’s UK Tap dial switch page and Hue’s UK reset guide.

What This Problem Means

The Hue Tap dial switch runs on a CR2032 battery, and Hue says you can “Control up to three Rooms or a Zone with each individual button”. Hue’s FAQ says it can control up to 10 lights without a Bridge; add a Hue Bridge to customise the buttons.

Common Symptoms

• Pressing a button or turning the dial doesn’t change your lights
• The switch doesn’t control all of your lights
• You can’t change what the buttons do
• The switch has stopped responding

Safe Checks You Can Try

1. Check how many lights it controls

Hue’s FAQ says: “If you don’t have a bridge, you can connect these switches to up to 10 lights”. To customise the buttons, add a Hue Bridge.

2. Check the battery

Check the battery: the Tap dial switch takes one CR2032.

3. Reset it in the app

In the Philips Hue app, navigate to the edit screen of the switch and tap the Reset button.

4. Factory reset with the Setup button

If problems persist, press the setup button (or pinhole) for more than 10 seconds. Hue’s light reset guide places the Setup button “on the back of the switch”.

5. Add the switch again

Add it back in the Philips Hue app: go to Settings > Devices and tap the + button.

6. Keep it indoors

Hue’s switches “are rated for indoor use, so be sure to only use them inside.”

Using the Tap dial switch to reset a light

The Tap dial switch can also factory reset a Hue light. Within 30 minutes of powering the light off and back on, hold the switch near the light and press and hold the Setup button on the back for at least 10 seconds. Release it when the light flashes.

When To Contact Support

If none of these steps fix it, contact Philips Hue through Hue’s UK support site.