How can i fix my washing machine? It's a fisher & paykel smart drive 708?

PLEASE SOMEBODY HELP ME, I own a fisher & paykel smart drive 708 washing machine. It used to work fine but after moving house it has started playing up. Basically it doesn't seem to be filling with water properly, hot or cold cycle. The flow of water into the machine is more of a trickle and it stops trying to fill after a few minutes and starts beeping. I've been filling up the rest of the water by bucket and this seems to work until it gets to the rinse cycle and then it stops and beeps again until i top up the water. As you can imagine this is a long drawn out process and the beeping is driving me mad.