You will need, star head screwdrivers and a pair of pin nosed pliers. Remove the door from the machine. 2 holding screws and then lift up. Place the door glass down and take the 6 srews from the inside of the door. They are all star heads. Now carefully prise appart the two bits. The door hinge may come off make yourself aware of its orientation. Take a pic. You will see the handle mechanism. Take a pic if you can as the spring orientation is tricky. With pin nosed pliers carefully pull out the metal rod. The metal catch will drop out downwards. take out the broken handle with spring in correct orientation, take a pic. Slide in the replacement handle with the spring in the same orientation. Now replace handle and spring into origional position. From below slot in the metal catch, pointed bit outwards. Spring should sit pushing against flat side of metal catch (the other5 side to the pointed bit), with the hook like bits of the spring upwards. Push back in the metal rod, through housing spring and new handle. Now replace the top white part and check the door handle pulls out the catch and is replaced by the spring mechanism. If so screw back the 6 screws and replace the door.
If at any time the spring orientation confuses you refer to the pictures, I didnt take any and I wish I had. It took me a while to suss it.
alberto Balsam, September 2009