Index: firmware/App/Controllers/DialInFlow.c
===================================================================
diff -u -rfeb0cd09c472099121146674f89fe88c1445c4d0 -r4c5ab126c8c33f9a5dcc58cef8933bbe0b1c25b4
--- firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision feb0cd09c472099121146674f89fe88c1445c4d0)
+++ firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision 4c5ab126c8c33f9a5dcc58cef8933bbe0b1c25b4)
@@ -1109,7 +1109,7 @@
         payload.rotorCount = getDialInPumpRotorCount();
         if ( ( MODE_PRET == opMode ) || ( MODE_TREA == opMode ) || ( MODE_POST == opMode ) )
         {   // prescribed flow only available in treatment modes
-            payload.presFlow = getTreatmentParameterS32( TREATMENT_PARAM_DIALYSATE_FLOW );
+            payload.presFlow = getTreatmentParameterU32( TREATMENT_PARAM_DIALYSATE_FLOW );
         }
         else
         {