Have checked both, but surely it should fire up if I put it to 'on all the time'? Shouldn't that override whatever mistakes I may have made setting the timer?
Help! Cold! Baby due yesterday, panicking about house not being warm!!
OK - problem is we turned the heating on the other day and it was working well, house was toasty warm, water was heating beautifully, then I decided stupidly to set the timer thingy and it hasn't worked properly since... Hot...