my hotpoint wf326 will switch on by it self?

Sounds like you may have a problem with the mains filter in the machine - it stops voltage surges in the mains from interfering with the microprocessor programmer. As a quick measure you can buy mains filters at any electrical shop which plug into your wall socket. You then plug the machine into it.
Check out this site for spares : www.4directelectricals.co.uk
Check out this site for info: www.2ndwave.co.uk/manual.html

dan
February 2008