my hotpoint aqaurius is not taking any soap from the drawer?

the soap drawer remains dry on the soap side after doing a load of washing, I've took the darwer out and cleaned it, also, where the inlets are, they all look clean, washing machine fills with water as normal and goes through full cycle, can't figure it out. It was working perfectly up till yesterday. any ideas? the model is the Aquarius wm 22.
Thanks.