02-200470 integrated machine

I am trying to find out some information on behalf of a friend who has recently moved into a flat with an existing integrated dishwasher – but no documentation. The only identification I’ve been able to locate is a label which gives the model number as 02-200470. It also says “Bernstein Group Plc”, although other investigation with this model number seems to suggest the manufacturer might be White Westinghouse.

Assistance with any of the following would be appreciated:

1. If anyone knows how to get hold of some documentation for the machine (or a similar model) that would be very helpful.

2. There appear to be three warning lights on the panel. Two of them are by symbols I recognise and are for “rinse aid” and “salt”. The third (left most) appears to be a horizontal line with a sine-wave over the top. I can make a guess as to function but informed advice would be appreciated.

3. There’s a single digit LED on the extreme right of the panel. I’ve seen the number 7 here. Information on the general purpose of this digit would be appreciated.