Index: firmware/App/Modes/ModePreTreat.c
===================================================================
diff -u -r9c96ad1bd9f61a3c6f979aebb1d9ccf1ec5529d7 -r53ded5e26646574d5bae2cebd5de47a2ac5a3c2d
--- firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 9c96ad1bd9f61a3c6f979aebb1d9ccf1ec5529d7)
+++ firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 53ded5e26646574d5bae2cebd5de47a2ac5a3c2d)
@@ -196,6 +196,10 @@
             // No action required.
             break;
 
+        case TD_PRE_TREATMENT_HEPARIN_SETUP_STATE:
+            // Heparin Setup transition is already handled in handleRxState().
+            break;
+
         case TD_PRE_TREATMENT_RECIRCULATE_STATE:
             // No action required.
             break;