Lately I have noticed that the relay (with neutral) flashes the lights. The lights turn on and immediately after they go out, alone without any intervention on my part. Do you know what it depends on and how it can be solved?
This is the relay model that I installed:
https://www.spanningglobal.com/wp-content/uploads/2023/05/Xiaomi_LLKZMK11LM-1.webp
Thanks
Hello, please clarify what colors are lit (blue, red) and what is the intensity of the blinking?
It is not the relay that flashes, but the lights connected to it. They make a sudden quick on and off. Lately it’s been happening to all the lights connected with the relays. I have more than 20.
I understand, the question is, how long have you been using the relay?
How many relays do you have involved?I understand that you have a lot of relays.
I’m using relays for about 4 years. The relays involved are about ten, some of which have been recently replaced
Hello @social_rux
Perhaps you used too much load or the starting currents are too high, because of this the relay may fail, sometimes this happens if the distance from the relay to the consumer is too large, it may also be cable interference.
Until a few days ago he had never done it. And everything remained the same. This is the strange thing
Of course, now let’s analyze the situation. Since you have a group of relays failing, I want to know how often, simultaneously or separately. We need to find out if this is a complex problem. I had this but with one relay. So give an expanded relay connection diagram. I suspect that this is a problem for all relays (simultaneous), related to installation.
In the past I also had another type of problem. The lights turned on by themselves and turned off indefinitely, (in practice the lights flashed continuously… on, off, on, off… infinitely) then I solved it by removing the ignition from the second switch to the wall. So today I can only turn on the lights from 1 switch to the wall instead of two (in some rooms having two ignition points is very convenient). The problem that has occurred for a few days is similar, the only difference is that it turns on and immediately turns off and remains off. As for the installation diagram, I used the one provided in the sales box.
Aqara relays of the old type are less protected from interference that is in the relay control lines. I had a case when the switch from old age began to have poor contact, and the relay spontaneously turned On/Off, I made automation if there is no movement and turned on then Off. In your case, this is a group problem. It may be related to
1- with the relay resource (4 years);
2- wear of some switches connected to the relay.
3- parasitic noises appeared in the network that “fly in” to the relay, which perceives this as a signal to turn on;
1- nothing can be done with the resource (it is easier to buy a new one)
2- wear of the switches is checked simply (I did this) by putting the switch in the Off position (the relay control contacts are clean) and controlling them with the application for some time.
After some time, I looked at the event log in the application for the presence of On/Off relays (unauthorized).
3- you need to analyze what changes you made in the house after the period when the relays started to fail. You added a dimmer, a diode lamp, etc. that can give a hint to the home power supply network. If you have a common bus, then this can go on it. Even in this option, be sure to check the correspondence of the phase and zero connections, these relays do not have dry contacts and therefore this is important.
That’s all for now, understand that the process of identifying the problem can be long, unfortunately.
By the way, you mentioned that you added new relays recently, maybe after that everything started?
The same type of relay and the same problem. I thought I had ghosts in my house or that someone had hacked into my smart home. I replaced the relay with the new T2 model.
And just a side note: with the new T2 relay in connection with the RTCGQ13LM motion sensor, after about 2 years the relay failed (contacts stuck). I disassembled it and replaced only the faulty relay itself.
So in your opinion, replacing the old model with the new one will solve the problem?
Unfortunately no, I haven’t added anything new in the period before this malfunction.
so with the new t2 model you solved the problem?
Hello, do you have external switches connected to the relay, if so, then physically turn them off (turn them to the Off position) from one of the relays and observe whether there will be any change or not. Did you understand what I wrote?
“I hope so, I’ve had it for about half a year.”
Theoretically, the new relays should be trouble-free (they have improved protection against interference). I suggest you buy two T2s to start with and experiment with their reliability in your network (will the lamps blink).
What do you mean by external switches to the relay? The classic physical switch on the wall to turn the light on and off?
Do you have any advice on where I can buy them to save some money? On Amazon Italy they cost €35 each.
