Ok lets see if theres an error code stored in there.
To do this you need to turn the dial to off position
Then press and hold the start button and the button to the left of it
With them pressed in turn the knob 1 click clockwise
Keep the 2 buttons pressed in till the lights start to flash then let go.
Now turn the dial 9 more clicks clockwise but dont pause in the 7th position though
Now the start light will be flashing count the number of red flashes and then the green and let me know.
Then turn the dryer off.
Ok that error code is E62 which means either the heater element or the control board or wiring is at fault here.
The first thing to check here is the heater at the back. Take off the bulged cover there and from there you will see the heater unit. Take it off and you will need a multimter to meter it out and the thermostats which are at the back of the heater.
If the heater checks out ok and the wiring is fine then the control board is likely to be the problem here.
But as the dryer is only 4 months old then it will still be under warrenty with zanussi. So you might be best getting them to fix it for you as taking the panles off will invalidate the warrenty.
But if you want to fix yourself then just do the above.
If you need anymore info just get back to me.
No sorry this machines dont have any reset buttons or anything like it.
From the error code we got it suggest a fault on either the heater or the board im afriad.