Door open with Key script isn't working

I don't know if i'm being ridiculously stupid, but I'm normally a concept artist, I'm trying to make a door open with a key and quite honestly have no idea why it isn't working. The script is:

 @HideInInspector
     public var Pressed : boolean = false;
 @HideInInspector
     var isOpen : boolean = false;

 class DoorTextClass {
     var DoorLockedText : String = "The Door is Locked find Key";
     var DoorJammedText : String = "The Door is Jammed";
 }
 var DoorText ; DoorTextClass = new DoorTextClass ( ) ;
 

 function WaitPressed() {
     if(Pressed == true){
         yield WaitForSeconds(2);
         Pressed = false;
     }
 }
 
 
 function OnGUI(){
     if(Pressed && isLocked == true && isJammed == false)
     {
         GUI.Label(Rect(Screen.width /2 -62.5, Screen.height /2 + 50, 200, 100), DoorText.DoorLockedText);
         WaitPressed();
     }
     
     if(Pressed && isJammed == true && isLocked == false)
     {
         GUI.Label(Rect(Screen.width /2 -62.5, Screen.height /2 + 50, 200, 100), DoorText.DoorJammedText);
         WaitPressed();
     }
 }

Any help is much appreciated :)