Hello all iv had and been scammed terrible trouble with water heaters in the past so this time I ordered a tankless one from amazon great got it last week fitted it in van with a few alterations to pipe fittings then got two batteries put them in right way up but nothing no screen no clicking to ignite its says to put in D cell batteries now I got mine in a euro giant shop in dublin does anyone have a clue about these heaters and what is best batterys to use I got on to amazon that want me to return it for refund but I threw out the hose they supply and shower head as they where cheap made