I’m getting very frustrated now. I’m on my fourth electric shower in 18 years at our property and all of them have cut out and tripped out at the circuit board too. Shower number four is brand new and only installed two weeks ago but it has just done the same! Before we installed the latest shower, an electrician came to check out our wiring and said no problem running an 8.5 kw shower but it has always tripped out in main bathroom. We have run an 8.5 successfully in our ensuite for 18 years with no problem but can’t get the same success in the main bathroom which other members of the family use. This new shower of two weeks is actually a 7.5kw and it has just tripped the circuit too. I’m at a loss where to turn next. Any advice/help! Many thanks.