Just a question I don't know much about boilers but one off my children managed to turn gas off at mains and my boiler was running I didn't realise till I went too run a bath and since then no heat no hot water.i googled has u do reset button red one but won't go down ok then pressure low but I don't know which lever is what I don't wanna mess things up I am ringing my landlord at 10 has that's when they open but just some advice really.