Worcester Combi 24i - NOT Junior

I suppose it is just possible that a) the boiler over heated and b) as the O/H cut out tripped there was a cause for the RCD to trip.

Looking at the

My _guess_ is that either the plastic cross is pushed, or it unscrews to reveal a press-able reset button.

Ed,

Thanks for taking the trouble to look at this.

I'll have another look at the thing with the cross.

However the underlying problem might need looking into. Why did it O/H and why did that cause an RCD trip?

Builder/plumber called round this afternoon regarding some work he is doing for me and discovered that the mains power lead, (black), had come loose - put it back and Bingo! Not an O/H. He also said that to reset this model, you turn off and on at the mains ???

Probably arced when it came loose and tripped RCD.

Now I know how to DIY this problem in the future

Thanks again for the thoughts, and the location of the picture.

To reset from an _ignition_ lock out the power is turned off and on. An O/H lockout requires resetting the O/H stat. At least that is both my experience and what it says in the book.

I know. But I/we cant find a reset button - It's normally on the top front left, but there is only that brown thing with the plastic cross. You cant press it, nor can you unscrew it.

Anyway, it's working now, so hopefully wont have a problem

Thanks again.

Since I've only reset then for ignition problems I don't know. Perhaps when you _really_ do have an O/H problem the plastic cross will jump out and be resetable.