Have set my humax to record but it fails to do so. Does anyone know why?

You have posted too little information.
Model of recorder? Software of recorder? Method of setting recordings? What have you tried so far? Example sof programmes/channels that have failed and examples of porgrammes that have not failed? Has recording ever been OK most of the time? Is there anything elese which also has started to go wrong e.g. the epg not filling up as well as it use to?

NS
October 2012