A Bridge Rectifier is a group of four diodes connected in a square - nearly always "potted" together - 4 connectors.
http://www.ebay.co.uk/gds/how-to-fix-dyson-fault-f11-dyson-cro1-washing-machine-/10000000022723092/g.html
Here's a link above to an e-bay supplier - much cheaper from a hobby electronics store - will need soldering skills to change it.
Ask an old retired codger who lives close if he has a soldering iron - buy him a couple of beers for his effort - or if you have the confidence do it yourself - if you have the money call in a service engineer who will probably change the circuit board.
Good luck..., January 2015
