Forget the test mode for a minute and stick the macxhine on a fairly quick programme with nothing in the machine then test it. If the machine spins but does not properly with a normal load size you either have a pump semi blockage, your original load was out of balance – big duvet sheet rolled into a ball or the pcboard is sensing that when it isn`t rolled up into a ball and the pcb is toast or the water level is far too high and the machine times out – usually an air trap blockage or a pin prick split in the pressure switch thin hose – usually a tiny spllt where pushed onto the pressure switch. All as a rough guess.