Index: firmware/App/Controllers/DialysateFlow.c
===================================================================
diff -u -r24e6e4df038de04e13363d1eb929b4fd693046ff -r9cf99616cedc2bdf73b1af4dbbb43ee1cf3ef06b
--- firmware/App/Controllers/DialysateFlow.c	(.../DialysateFlow.c)	(revision 24e6e4df038de04e13363d1eb929b4fd693046ff)
+++ firmware/App/Controllers/DialysateFlow.c	(.../DialysateFlow.c)	(revision 9cf99616cedc2bdf73b1af4dbbb43ee1cf3ef06b)
@@ -109,6 +109,7 @@
 void execDialysateFlowMeterMonitor( void )
 {
     U16 dialysateFlowReading = getFPGADialysateFlowRate();
+    dialysateFlowReading     = ( 0 == dialysateFlowReading ? FLOW_SENSOR_ZERO_READING : dialysateFlowReading );
     F32 currentFlow;
     BOOL isFlowOutOfUpperRange;