Zanussi 1650W – 91451751401

I have been to several of these washers in the same location. I found various faults as follows. Any assistance would be appreciated. I checked the obvious things, blocked pumps/filters etc but was short on time. Appliance 1. Does all it should do, I can make it fill, heat, wash, drain and spin, but it will not index through the programme. I suspect this has to be the module. Appliance 2. When switched on, the interlock clicks at 2-3 second intervals. It will not programme. Appliance 3. Fills and then stops dead. No motor action, but the motor tests out ok. Appliance 4.Fills and stops dead. It will drain and spin, but when in the spin mode, will not switch off. Cheers for any help given. Steve.