Washing Machine?

When I select a program on my defy Automaid 600 you can hear the machine trying to pump water into the machine and then the pause/start butter and the wash buttern start to flash. I have checked that the door is closed, nothing blocking the water flow. Rebalanced the washing inside. Taken half the washing out still go flashing lights. It seems like there is not enough water flowing into the machine as there is always power still in the machine when the lights beging to flash.