Wml560 hotpoint problem

[Andyb7]

HI 

MY mother has a WML560 Hotpoint washer, which has had a problem for a while. 2 program cycles often don't complete.  I checked the height of the pipe and then removed the filter cleaned it checking the exit pipe and also made sure the pump worked.  The machine seemed to work for a few days but has now started to constantly fill and empty on the rinse cycle and won't move on.  Though we manage to get it to move using the rail to change the setting.  The motor has turned the drum and spun.  But it seems now to be stuck on fill empty again.  Is the the main pcb  or the switch pub? Please help. 

[Whitegoodshelp]

Hello. If the drain hose is pushed too far down the standpipe or is allowed to fall too low to the ground then water can siphon down the drain. That would cause the washing machine to repeatedly fill with water, lose water down the drain and then fill trying to top it up in an endless cycle. Check the siphoning section of this article Siphoning water