in short - Diagnosis - there may be many reasons some of which you can eliminate but others will need some expertise and test equipment - you may do best to take it to a specialist shop but first check the electrical supply and the fusing.
Socket - fuse in plug - integrity of the power cord then take it to the doctor - it may be a problem with the power supply in the machine or something as basic as the on/off switch.
Good Luck..., January 2016
