Re: Black Oil on my dishes from my zanussi DX6451
There is nothing in your machine which will generate black oily deposits, therefore you should consider that the deposits which have built up over the past 3 or 4 years in the tubework under the machine are now breaking up and depositing in the tub.
Multifunction tablets are not popular amongst service engineers – THIS article will outline our reservations.
Your engineer was not incorrect – he could have done more to explain the problem.
I’d get some of THIS STUFF and run them through.
Let us known if things improve.
Regards,
Penguin45.