I've no hot water or central heating. Think it locked out on low pressure so I've repressurised and now need to reset. The back of panel says the reset button is on the top of the boiler, but there's a static sort of screwe thread with a nut at the bottom and a little plastic think with a red plastic cap on. Does anywone know which, ifany, is the reset button? I've also turned off the electric, run hot taps, to no avail ... Please can anyone help
Thanks in advance
Sandra
Thanks in advance
Sandra