Hi,

I had a smart meter installed on Friday and since then my immersion heater has not been heating up overnight. I’m on an economy 7 tarrif and the meter installed is a 5 terminal meter. The meter shows two rates and both meter readings have changed so it appears to be recording energy use on both tarriffs. Nothing has been tripped and I’ve also tried resetting the immersion heater but still no hot water. The boost function still works though. 

Has anyone had a similar experience/know what a fix might be?

Thanks!