Got a 23 month old hointpoint intigrated dishwasher. It now runs for approx 20 seconds when any program is selected, then beeps and shuts down shortly after. Opening door shows flashing daily cycle led which according to manual is a technical fault. Also there is no sign of any water being in the washing compartment, although there is deffinatly the sound of water entering the machine. I have checked water supply and filters, also checked drain hose and drain pump for blockages. Level switch also seems to operate ok. Any ideas?