how to power up miele T490 tumble drier?

has anyone found a fix to why the anti crease etc light does not light up, but the light inside of drum is lit so i know there is power is there just not the programmer thus not being able to use. Have left on to have a cuppa and noted it has lightened up again and working, but this did not last and back to no light on control panel again.. agrhhh. help