Update: he found and replaced the failed O ring gasket and then the circuit board that the resulting leak had ruined and found a problem with the earth continuity to the supply.
Took over 2 hours so £200 doesn't sound so bad. (An equivalent replacement machine is well over £1k now)
Washing up gloves are like a quid …. 
Spoken like a true Apey. Now what does Misty say on the matter?
We have no room for dishwasher…..I have to do it …

But she cooks …

( and I buy paper plates ..

) …