diff --git a/src/main/java/ch/psi/mxsc/PuckState.java b/src/main/java/ch/psi/mxsc/PuckState.java
index 9bd6fc3..06cfed0 100644
--- a/src/main/java/ch/psi/mxsc/PuckState.java
+++ b/src/main/java/ch/psi/mxsc/PuckState.java
@@ -63,16 +63,20 @@ public class PuckState {
                 case Mechanical:
                      if (this.mecSwitch ==SwitchState.On ) {
                         basePlate.getPucks()[id - 1].detection = Puck.Detection.Present;
-                    } else {
+                    } else if (this.mecSwitch ==SwitchState.Off ) {
                         basePlate.getPucks()[id - 1].detection = Puck.Detection.Empty;
+                    } else {
+                        basePlate.getPucks()[id - 1].detection = Puck.Detection.Error;
                     }
                     break;
                 
                 case Inductive:
                     if (this.indSwitch ==SwitchState.On ) {
                         basePlate.getPucks()[id - 1].detection = Puck.Detection.Present;
-                    } else {
+                    } else if (this.indSwitch ==SwitchState.Off ) {
                         basePlate.getPucks()[id - 1].detection = Puck.Detection.Empty;
+                    } else {
+                        basePlate.getPucks()[id - 1].detection = Puck.Detection.Error;
                     }
                     break;