This is a bit trick but easy once you know how
If the handle has snapped off and left the spring and catch still in take off the door from the hinge there are 2 star screws , Lay on floor with handle to floor take out screws all round door capping about 7 i think and prize cover holding glass into place take out glass and you are left with just the frame and door catch . turn the door over and mark where the 2 ears of the springs lay its easier when you go to put spring back on . Pull out long steel bolt holding the catch the spring will come out also . once out put the new handle through the hole ,put new spring to the marks on other side of door This is where it gets tricky While holding the spring and handle you have to push the steel pin through The spring , catch and the hole in the handle once through ,make sure it works and put the door back together .Easy
tony gledhill, July 2008