I fill the water in the water tank, I also set the temperature suitable for steam ironing. But everytime I press the button on which there is a spray symbol, there is no other steam boost or steam symbol on it, and that is the only one button. The iron just spray, doesnt steam. I try everything, but it does not steam, just spray. I use Steam Iron Philips GC 1705. Please, tell me, what's wrong with the iron? Thank you