Index: firmware/App/Modes/ModeFill.c
===================================================================
diff -u -r6d5a23b275903587f400bc686aed4d2709cf3e78 -rdd8c7304a6f366e4815facd247700ea00d26c7ca
--- firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 6d5a23b275903587f400bc686aed4d2709cf3e78)
+++ firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision dd8c7304a6f366e4815facd247700ea00d26c7ca)
@@ -151,7 +151,9 @@
         case DELIVER_DIALYSATE:
 
             if(toggle_counter == 0) {
-                setUserLED(TRUE);
+                #ifdef RM46_EVAL_BOARD_TARGET
+                    setUserLED(TRUE);
+                #endif
                 toggle_counter++;
             }
             break;