melvin phuti

Latest updated, ditched the pi zero and replaced it with a Sonoff Wifi R3 device. Had a few cold water days because PI became unresponsive. Yeah wife was ready divorce papers 🤣
Logs showed memory heap error before pi would say bye! Thinking a Pi 2B+ or higher would of done the job. 
Working fine for the last 3 months with the Sonoff. 

It can be difficult to explain you had cold water because geyser was off-line.😀

@melvin phutiYeah in my household, it's only my brothers and I that can hear it. Every other person I've asked can't hear it even with their ear right against it 🙈😂 My solution is to turn the setup completely off until load-shedding is announced.
So the conclusion must be we have super powers lol

It's essentially an internal load-shedding solution to keep your own peak consumption down, by ensuring that two high-consumption appliances are not on at the same time. Eg Stove and Geyser. These days, a function like this could be integrated into something like a geyserwise.

The new model is called a "load-shedding relay", basically stop any power going to a certain appliance during certain times as well as when something else is drawing power.
After that item, lets say primary geyser shuts of, it will supply power again within 15 minutes.
Cost is over R 1 000, I have one installed, nice to have but not really needed if your timing/timers are working properly. If not, then you might see this as a need.