Welp, looks like the same hardware, just different zigbee & wifi chip. Could be zigbee chip issue?
What's the progress with the seller? Refund/return/replacement?
I think I could help with swapping the zigbee chip with a an esp chip to test it out or you could do it yourself.
I do have a few extra esp-02s chip that's pin compatible with cb2s/zt2s

https://templates.blakadder.com/ESP-02S.html

This post has been edited by alucard89: Feb 21 2023, 10:59 PM

I don't think using the socket with water pump is the cause behind blown capacitor and resistor. It's just normal aquarium water pump ~60W although I'm using it to water plants 3 times a day. The socket is nominally rated for 3000W after all.

Plus, the other 2 sockets (of the 4 blowns) just happened to sit OFF on the same gang. not even switched on.


This post has been edited by Oltromen Ripot: Feb 21 2023, 11:06 PM

I agree, definitely an issue with the tolerance setting of the Zigbee-based.

If I understand the materials I've been reading online, there are several issue, but it always involve (i) Zigbee and (ii) power monitoring.
power monitor supplies monitored values at interval.
Unfortunately, the problem is either power monitor supplied 0V (Zero Volt) at switching ON, causing the socket to switch OFF, OR, in my case, it supplies values correctly BUT over the configured limit.
So over there, vendor either disabled capability of power monitor to push value and instead external system have to poll for it manually, OR, raise the configured limit.
If Zigbee socket cannot determine values, it won't switch OFF on its own

Initially the seller tried to coax me with partial refund.
But he came back in the evening pointing out to the "95V - 245V" spec in the description.
The seller if pinning the blame on me for having TNB supplying me Voltage over what the socket can support. So he will only talk to his boss to refund for 1 socket (I bought 9!). I'm insulted that he blamed me for the (over)voltage supply - which is not even under my control - and the token refund amount, so I declined his refund offer altogether.

Thank you for the offer to swap on my behalf.
Let me give a thought over the new finding of blown capacitor and resistor first. Probably a re-strategise.
As I am now concerned that this whole thing about replacing sockets with smart sockets could be an expensive misadventure on my part, considering the mains voltage itself is always above 250V and I could have a repeat of that blown capacitor in near future. I still have 24 wifi sockets not yet installed..........

what a joke that the socket itself die in the first 2 weeks while the equipment it was meant to control had survived all the while and longer.

HI did you complain to tnb?

I use a few smart socket with energy monitor and it shows that my voltage is 228V to 233V

I didn't.
Voltage in excess of 250V is still within spec of Energy Commission.
And, I used socket testers at 3 geographically different premises and also in office; all above 250V. So this seems to be normal as far my haunts are concerned.

this solution provides (for my family) independent switching.
sometimes when water pressure slow from direct pipe (kitchen/laundry), just can switch ON from wall panel at hall. (tank water pump under roof)
also toggle from switch with water heater at upstairs toilet.

using basic wifi smart switch also can.. just wired it to power the contactor.. the contactor then complete the circuit supply direct from mains/DB.

Oltromen Ripot problem i think came from the devices.. as he said in "off" position it burns.. either voltage spike or the component itself failing.. can try by replacing the burn components.
looks like failed caps, varistor, resistor.

ehh actually my water pump always ON.
never switch off...

do we really need to switch it off? haha

Depends on ur configuration or usage.
My house just use for shower and laundry.. low pressure from tank.

I prefer to switch off, as any water use (tap/flush) will run the pump if left on.

Btw, im using inverter water pump.

Wow, very unlucky indeed. I am actually considering to purchase some of these zigbee wall sockets to increase my zigbee mesh. BUt not looking at MOES products at the moment. Eyeing the Smatrul universal zigbee wall outlet at the moment, quite cheap at RM5X.XX. Once i do buy it, hope it doesnt fry like yours. Fingers crossed.

This one?

https://s.lazada.com.my/s.U5EQG

Find any wifi/zigbee wall sockets with type c ports?

Those other non-MOES sockets; check their amperage rating.

The one @alucard89 referred to, I think only maxed at 10A.
So it can be unpredictable since our 3-pin plugs are 13A; you might mindlessly insert 13A device into such 10A socket.

16A amperage is one of the reason I went with MOES socket, apart from (now shattered) trust in the brand name.

This post has been edited by Oltromen Ripot: Feb 24 2023, 11:32 AM

Yup similar to that, but the one you linked is a wifi model. The zigbee one looks the same, smartrul brand. No, i tried to look for a usb C outlet one, but doesnt seem to be available yet. I tried in Aliexpress, Taobao and even expo.tuya. Nothing released yet.

Can buy from expo.tuya? Looks similar to alibaba ordering

Probably just stick with power monitoring plugs now just to be safe.
Any updates with the seller? refund for the damaged ones?

Hi, yeah.

I refused to continue with refund altogether.
He wanted to refund a single 1 unit out of 9, but at the same time he blamed me for not checking that my residence voltage fall between 95V-245V. He wants to nitpick that he already have the range in his description, so I also nitpick that his description had me fooled into believing the zigbee wall sockets is rated 16A but actually it printed only 13A.

Yes, my fault for only paying attention to amperage; but hey, which of us actually surveyed the (range of) voltage before buying appliances? Who would have thought the wall socket is so sensitive that itself turned off for good, while the zigbee round plugs otherwise worked happily. I have a dozen 20A zigbee round plugs that I use to force-reset key networking devices from afar and they worked over 250V without complaint.

Not buying the zigbee wall socket after this.
I will buy more of the zigbee round plugs instead.

As for the 9, I made a batch of 2-gang sockets, and have them take over where my 20A round plugs used to sit after AVR+UPS.

The AVR+UPS combination is good at keeping voltage to around 220V, so now these zigbee sockets can work their wonder.

And to my surprise, after attaching the zigbee wall sockets to 2000VA UPS, which I had calculated to only be able to last less than 2hrs (based on the spec of adapters consuming it), actually lasted 4hrs and still have 50% juice. More than happy with the outcome.

actually you can. I did ask for a quotation before (some need a min quantity), but then i gave up, cos i wanted my item quick, and i think they’re prolly gonna ship slow.. and tracking could be an issue

How’s the shipping fee there?
If alibaba i usually just have them ship to china warehouse to consolidate

It’s all down to seller’s attitude.
Once damaged some 2 way switches from a shop because accidently wired different live cables.
But the seller was ok to replace them foc

Interesting topic. Need more topic here on smart home. My previous job involved with smart home as technical leader. We had completed 6 to 8 project for smart home and last one commercial property not completed as i resigned from the company. It's better to DIY than request company to do it for you. More cheaper and option is available.