Hi Denis,
Performance power tools are made exclusively for B&Q stores, they are manufactured by the Global Machine Company (GMC), who make a lot of different branded products for large companies, like B&Q, Homebase etc....
Unfortunately, there are no spare parts available for their machines, on some items, the parts are interchangeable, or sometimes use standard parts, such as pressure washer switches, are just a standard rocker switch, but a lot of parts are specific to a machine.
They do offer a full guarantee with their machines, and if it is under the manufactures warranty period, they should be able to exchange it for a new machine, if it is out of warranty, they are designed to be 'Disposable', as they are so cheap to buy new - very annoying, but this is the way it is.
Hope this is useful.
Dave the tool repairer, October 2007