Then you can recommend the link for alucard89

If it can detect breathing then it should work

Refer to this discussion if this is what you were trying to do

https://support.itead.cc/support/discussion...ics/11000025368

If I remember it right, the Sonoff circuit is not fully isolate circuit. The relay just cut the L line like normal wall switch. That is why you do not need to bother the N side.

This post has been edited by Zot: Aug 12 2021, 09:53 AM

You meant this?

https://shopee.com.my/Smart-Doorbell-Camera...896?position=15

I see. It looks like both devices need to have transformer because none have internal transformer. If you are using the wired type, like other normal doorbell, the power will come from main unit. So, no need separate power.

As long as the transformer can provide the required AC voltage and VA rating, then no problem. You canfind many installation video from Youtube

What brand did you buy? Does it have relay inside. Many 20A do not use relay. The one with relay in more reliable.
I do not use one to recommend

This post has been edited by Zot: Aug 13 2021, 11:08 AM

Looking at the connection diagram, it looks like only L side is cut off unlike normal 20A switch where both L and N are isolated.

Never said it use relay or not but sound like your switch has electronic component failure already

I would like the relay cut both L and N side totally like normal 20A switch. This way the switch electronics will not face kick back voltage generated from motorized device like air-cond. The heater is pure resistance. So, I wonder why it heater is killing it so fast. Probably design issue.

If you look at the wiring diagram, you can see the N wire goes direct to heater and split to the switch also. This means that the relay in the switch (if any) is cutting off the L side only So the N side is not isolated.

How do you remove the whole AC unit from wall. If the AC is split unit, then the gas also out? Refill on your own?

I meant you disconnect the copper tubing between outdoor and indoor unit? Will not that release the gas?

I just use something like this.

https://shopee.com.my/%F0%9F%9A%9AReady-Sto...9406&position=0

No need to dismount. You can dismantle until turbine fan usually. However, some model is more difficult to the others. If not mistaken Mitsubishi unit is more user friendly. There are two different business unit, Mitsubishi Heavy Industries and Mitsubishi Electric. Mitsubishi Heavy Ind is more efficient in power usage. Not sure which one more user friendly but I think it is the Mitsubishi Heavy Ind which has been in this business much longer. I don't have Mitsubishi though but my brother does.

The exterior unit usually has fin& blower side separated from the compressor, and wiring side. I use water to spray direct to the fin and use brush to clean. No need to dismantle anything actually. It is quite safe.

I've done this few time. The fan side also also sprayed together with the fin. It is and inductive motor with no brush. I would not worry if it get wet a bit.

I think no need to worry much about capacitor. Just replace if you think it is bad. If faulty, compressor will not turned on. The price is cheaper than the technician labor fee.

If vibration too bad and make so much noise, it is normally the rubber bushes need replacement (usually 3 bushes). The cost for 1hp is less than RM10. I replaced it once before. Sounds like new air-cond

Me too. Probably you can Google how to clean. Not necessarily you want to do it but to learn how difficult

Cannot call Monday Blue since today id Thursday

Obviously you have switch diagram on the switch there. There is no N wire. All are L wires



The either L1A or L2A, L1B or L2B and L1C or L2C go to the light bulbs, it does not matter.

I should add that the one looping between switch is the L wire from DB or ceiling. The one with single wire is the one goes to the light bulb.

This post has been edited by Zot: Aug 26 2021, 09:18 AM

By stating L1, L2, and L3 as light bulb, yes it is correct.

Test pen can be tricky. it may light up on both end of the switch.

Yes. 1A and L1BC is the L side of the 3 switches. The L2A, L2B and L2C are connected to the wire that goes to the light bulb/lighting fixture.

That is the reason why aliens have big head and skinny hands and legs because they do not need to use muscles anymore.

It is probably much cheaper to use normal smart switch to switch high amp relay if you need to put that box on the wall

Meaning it has to be installed directly above toilet seat