Dryer wouldn't restart when start button pressed

Before beginning, unplugged dryer. 1) Used putty knife at each front corner of top to pop lid loose from clips. 2) Removed hex screws at back of control panel to allow lid to tip open. 3) With lid opened, removed hex screw from inside-top of each side to allow front to pull open from side panels and access door switch easily. 4) Removed clip that holds retaining wires from top. 5) Pulled wire from each side of door switch. 6) Removed switch assembly using Phillips screwdriver to remove two screws mounting switch at top of door opening. 7) Removed broken actuator spring and replaced. 8) Reversed process to reassemble.