you will have to establish if the machine is getting mains at the pump when an emptying cycle is selected, set for drain and put a meter across the pump leads
you should then have full mains going down, if you have and the pump wont run when full of water the pump is worn and needs replacing, if no mains check the two green leads going back up to the module for breaks if they look ok the trouble is upstairs, check that all the push on connections are fully pushed home
keymatic
November 2012