Blitzwolf BW-SHP13 stays on even if turned off ni HA/Zigbee2MQTT

Hardware
1

Hey, guys. I was wondering if you’ve encountered the same issues as I have. I basically use HA to regulate my laptop’s battery charging by turning on or off my BW-SHP13 smart plug when the battery falls or rises to certain levels. For the most part it works fine. However, after a month or so of operation, I find that the plugs don’t seem to turn off anymore. Even when HA is turning them off, and I can hear the audible click of the relay inside the plug whenever I turn it on or off, power is still delivered to my laptop.

Is this still repairable? Or am I basically stuck with is essentially now a (2 of them, actually) normal plug with power consumption readout?

2

I have similar problem with one of my smart plugs (1 out of 5). Based on my experience with other smart switches (e.g. Shelly 1L) the problem is the relay that gets locked in on state. Kicking it from all sides resolves the problem for a while - now testing for how long it will work ok.

1 Like
3

Thanks for the tip! I will definitely try that. :slight_smile:

By “kicking it from all sides”, do you mean actual kicking or will banging against the table work?

4

Yes.
Relays can stick and giving it a firm tap against a floor/table/wall can make it unstick.
Take note of the orientation you tapped it, it will happen again and probably more often over time.

1 Like
5

Thank you so much for the clarification :slight_smile: I’d rather keep on doing that than throw away perfectly usable plugs. :slight_smile:

6

You can also open it up and replace the relay if you have the skills and it’s possible

7

Lol, thanks! I just had this issue and was searching Google and came across this, and it actually works! Thanks! :smiley:

8

I’m having some troubles with one of 8 plugs which goes down for any apparent reason. I cut all the automation using the plug, checked deconz but I found nothing. Time to time, it’s just put off. Seems the relay don’t stay high. I also have one time the relay as off but keeping on the plug. I think I will need to open the device to check internal board. Do you have any teardown to not destroy it ?