hi Kirsty sounds like one of the water inlet valve for sure, best way 2 tell which one it is to feel the water if its hot then its your hot water valve cold then the cold water valve ( the valve is what u connect your water hoses 2 at the back of your machine) this part in australia is about 5 / 10 dollars new. if u want the instructions on how to replace please leave another message here 2 me
brad, April 2005