Index: firmware/App/Modes/FPModes/ModePreGenPermeate.c
===================================================================
diff -u -rcb8619fdf8690885708071d34b0e87e6657ecd62 -r64acabc33ab795591768801f8b443f0da9ee2b98
--- firmware/App/Modes/FPModes/ModePreGenPermeate.c	(.../ModePreGenPermeate.c)	(revision cb8619fdf8690885708071d34b0e87e6657ecd62)
+++ firmware/App/Modes/FPModes/ModePreGenPermeate.c	(.../ModePreGenPermeate.c)	(revision 64acabc33ab795591768801f8b443f0da9ee2b98)
@@ -452,11 +452,10 @@
  * PreGen Permeate sub mode.
  * @details \b Inputs: none
  * @details \b Outputs: none
- * @return TRUE if request successful, FALSE if not
+ * @return none
  *************************************************************************/
-BOOL signalNewPreGenPSubMode( U32 newSubMode )
+void signalNewPreGenPSubMode( U32 newSubMode )
 {
-    BOOL result = FALSE;
     FP_PRE_GENP_MODE_STATE_T reqSubMode = (FP_PRE_GENP_MODE_STATE_T)newSubMode;
     LEVEL_STATE_T level = getLevelStatus( P25_LEVL );
 
@@ -467,19 +466,16 @@
             case FP_PRE_GENP_INLET_PRESSURE_CHECK:
                 preGenPState = FP_PRE_GENP_INLET_PRESSURE_CHECK;
                 setModePreGenPTransition( reqSubMode );
-                result = TRUE;
                 break;
 
             case FP_PRE_GENP_FILTER_FLUSH:
                 preGenPState = FP_PRE_GENP_FILTER_FLUSH;
                 setModePreGenPTransition( reqSubMode );
-                result = TRUE;
                 break;
 
             case FP_PRE_GENP_PERMEATE_FLUSH:
                 preGenPState = FP_PRE_GENP_PERMEATE_FLUSH;
                 setModePreGenPTransition( reqSubMode );
-                result = TRUE;
                 break;
 
             case FP_PRE_GENP_CONCENTRATE_FLUSH:
@@ -494,17 +490,13 @@
             case FP_PRE_GENP_VERIFY_WATER:
                 preGenPState = FP_PRE_GENP_VERIFY_WATER;
                 setModePreGenPTransition( reqSubMode );
-                result = TRUE;
                 break;
 
             case FP_PRE_GENP_PAUSED:
             default:
-                result = FALSE;
                 break;
         }
     }
-
-    return result;  // TODO can this be a void function
 }
 
 /*********************************************************************//**