diff --git a/guiheader.py b/guiheader.py
index 4b868ce..6353976 100644
--- a/guiheader.py
+++ b/guiheader.py
@@ -584,11 +584,15 @@ class GUIHeader(QWidget):
             pf.setStyleSheet("background-color:{0};".format(color))
 
         val_amd2 = self.cafe.getCache("AMD2:SOL:2")
+        is_closed = self.cafe.getCache("BMD1:STA:2")
+        color = self.pf_bgcolor()
         
-        if val_amd2 is not None and val_amd2 > 0.0:
-            color = "green"
-        else:
-            color = self.pf_bgcolor()
+        if val_amd2 is not None and is_closed is not None:
+            if "Geschlossen" in is_closed:
+                color = self.pf_bgcolor()
+            else:
+                if val_amd2 > 0.0:
+                    color = "green"
 
         for i in range(5, 8):
             pf = self.pframe_matrix["O2"][5][i]