Bulb turning on by itself

Configuration Zigbee
1

Hello

I have like 30+ Ikea bulbs on my home. Since few days ago I had normal switches that power off and on the electricity to the bulbs. Obviously that combination of standard switches and smart bulbs was kinda stupid, I barely had proper control over the bulbs and turning them off completely gave me problems.
So now I’ve been changing the switches to wireless switches while having the electricity permanently connected now with the switches I just use the service light.turn_off (brightness 0%) and I have full control over the bulbs now.

So far I have like 8 bulbs with this new setup. One light group of 5 and another of 3. Everything works good, the switches turn them off and on properly. BUT, one of the bulbs from the group of 3 turns on by itself and randomly! The wireless switch controls the light group (with an automation), so the three bulbs should turn on and not one (if the switch was malfunctioning).

I’ve checked the logs and I can see “bulb turned on by switch” “bulb turned on by Javier” when I turn on with the switch or with my phone, but when the bulb turns on itself the log shows “bulb turned on” just like that…

I am clueless right now, any ideas?

2

Is the bulb configured to be ‘on’ after restoring power ? It could be intermittent power loss.

3

If you have no log of the switch turning on you probably need a bypass capacitor.

4

I don‘t get why you have „smart“ switches infront of „smart“ bulbs? Smart bulbs require constant power, most bulbs I know turn on on power on.

5

Because some family members like to use switches.

I have my smart lights set up as automatic off if no movement but if I flick the switch on they stay on.

6

You should use smart rocker instead, that don’t interrupt power, but send a signal to HA or even the bulb directly.

7

That’s what he has done. Replaced dumb power switches with smart switches in detached mode.

8

In that case it would happen to the three bulbs since they are wired together. I was thinking on zigbee coordinator losing connection to specific bulb, and upon recovering connection turning it on? Don’t know if that’s a thing.

9

But only in one or two bulbs? Why is not happening on every bulb?

10

That is what I changed, I have constant power and with a wireless switch I use the service light.toggle to turn them on/off while keeping the power on.

11

:man_shrugging: Some are more sensitive than others I suppose.

12

Just great, more things to study and learn. Jesus I thought everything would be more simple haha.
Anyway I thought capacitor was for preventing flickering or residual light. My situation is literally the bulb turning on at 100% brightness

I guess I’ll look in to it

13

I would exchange it with another one, rename the entities and see if it’s really linked to that specific bulb.

2 Likes
14

That was my first test before buying anything.
I will swap one bulb with another and see its behavior.

If anyone else has another idea, all welcome.

15

So yesterday I changed the bulb to another socket. After a while the same bulb turned on, so I guess there is something with the bulb.

I’ve changed it with another bulb and so far so good. Never heard of bulbs having this kind of problem but I guess the smart part of the bulb has its inconveniences as well.

Thanks everyone for the help, I hope this will fix the problem. If not I will try with capacitors

16

I had the same issue with a couple of my Cree bulbs. I use zha to control all my zigbee stuff. After replacing those insolent bulbs (which fixed it) and before throwing same said insolent bulbs in trash, I did the factory reset (toggle on/off until it blinks in submission) and reconfigured it.

The insolent bulbs have decided to comply.

17

I like the term insolent bulbs, on point. If I need to I will try to factory reset, even thought I just did when the problem started.

Thanks for the advice!