hotpoint aqualtis aq9f492i no power to pump

Hi all I’m a little stumped to the cause of my problem. I have the aq9f492i which will run programs fine apart from pumping out, I have replaced the pump and checked the pump wire continuity which both are good but there seems to be no power to the pump from the board well there is 0.5 v. I thought maybe a capacitor but all the electrolytic look fine no marks are scorch marks on the board and all solder joints look good. What really is thrown me I have got it to pump a couple of times since new pump but won’t do it 99 out of 100 try. So I’m thinking board but wondering if anyone knows if I can replace any of the components and get it working again