Why Is My Philips Hue Light Unreachable, and Can I Keep My Dimmer Switch?

• The wall switch is off. With no power the bulb's radio is off too, and it reappears once the switch is back on
• It is too far from the rest of the network. Hue says each light repeats the signal, so Hue's answer to a distant light is another Hue light part of the way there
• The Bridge has lost its router connection. Hue says the standard Bridge does not join Wi-Fi and has to be wired to the router
• Radio clutter on 2.4 GHz, a band Hue's Zigbee network shares with Wi-Fi; the Hue app has a setting to move the Bridge to another Zigbee channel

• Come back as it was before, with the same colour and brightness
• Come on at a colour you have chosen
• Follow Hue's default

• Hue's FAQ says older dimmers designed for incandescent bulbs can cause flickering with LEDs, and tells owners to 'avoid using Hue bulbs on non-dimmable circuits controlled by mechanical dimmers'
• Hue bulbs dim themselves from the app or a Hue remote, so they need no dimmer on the wall
• The safety leaflet with Hue fittings says not to connect them to an additional dimmer
• Hue's battery wall switch module is not compatible with switches that have a built-in dimmer

• Leave the switch on and add a Hue remote, such as the Dimmer Switch or Tap dial switch. No wiring, but guests will still reach for the old switch
• A Hue battery wall switch module behind the existing switch. The switch then sends a command instead of cutting the power, and no neutral wire is needed
• A Hue wired wall switch module, where a neutral is available behind the switch or in the ceiling above the light

• Each switch that controls a Hue light, and whether any of them is a dimmer
• How many switches control each light: one, or two or three on stairs and landings
• Where the Bridge sits and how it connects to the router
• Which lights drop out, and whether it happens when someone uses the switch or at random

A vetted pro prices your Hue job from the products and your photos, and the JACK app shows that fixed price before you book.

Whether the job touches your wiring matters more than how many lights there are. Fitting B22 or GU10 bulbs, setting up a Bridge and plugging in lamps, Play bars or a lightstrip is set-up work. Ceiling lights, Perifo track, wall switch modules and mains outdoor lights are electrical work on your existing circuits, priced for the isolating, connecting and testing each one needs.

Then the home itself: a heavy fitting that has to go into a joist, a high or sloping ceiling, a two-way landing that needs a module at both switches, old cable with no earth, or a long garden run for low-volt lights. On a high ceiling or a long fitting, your pro can ask another pro on JACK to help through the Pro2Pro feature. Several Hue jobs, and devices from other brands, go on one booking for one fixed price.

You buy the Hue products; JACK does not sell them. Accessories the job needs, such as a deeper back box, an in-use cover for an outdoor socket or aluminium channel for a strip, are agreed and added at cost before you book, and so is parking where it has to be paid for. Prefer to pay for time? As a guide, hourly hire is typically £45–£95 per hour for smart home work and £55–£110 per hour for electrical work, and a full-day handyman booking is a flat £350–£400 for up to 8 hours on site, which suits a whole-house Hue fit.