Dishwasher prog light is flashing and pump is running nothing els

Ok, just a few minutes after posting this as a fault, I have opened the covers, the machine has a leak, the undertray has a sensor which has detected this, flashing light (prog 45 degC wash) flashing is a code to indicate leak sensor active.
Other prog lights flashing indicate a different fault, the following details each... this is a cut/paste from another forum site, copied without permission....

jawa592 on 6th Feb 2008
Cannot guarantee 100%accurate but you all might like what the flashing fault codes actually refer to, note what follows are pointers to what bit has gone wrong only. You should have the programmes running left to right: led1=intensive,led2=normal,led3=eco,led4=fast,led5=prewash,led6=delicate wash.ok so when this heap of western european tosh goes wrong one or two lights will flash this is what they mean:led3=m/ch has o/flowed water . ie the base underneath has sensed a leak.4=i/let h2o valve u/s or slow fill.5=thermister(electronic thermostat) is u/s or more likely the pcb .6=timeout heating which means the thermister senser between the door halves has become faulty or detached.3+4=no pump out,slow pump out,pcb u/s,blockage.4+5=tap off i/let valve.3+5=wash motor not coming on -seized,winding o/cic.but can also mean mesh plte filter badly blocked.1+4software fault with pcb.4+6=heating cic u/s (usually the heater tube )but can be the heater relay on pcb.3+4=pcb u/s.I don`t except any responsiblity for this being spot on or near spot on!! hope this helps someone.Try NOT to electrocute yourselves please!! If your not at all confident walk away and get "someone" who knows what they are doing.Cheers. jawa592