Index: firmware/App/Controllers/BloodFlow.c
===================================================================
diff -u -ra2bc96881a5fc3d8f779246b2abebf15a8de9384 -r88a641b7b0185e0bad77e21e6d438e1d7283fd28
--- firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision a2bc96881a5fc3d8f779246b2abebf15a8de9384)
+++ firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision 88a641b7b0185e0bad77e21e6d438e1d7283fd28)
@@ -237,9 +237,7 @@
                             MIN_BLOOD_PUMP_PWM_DUTY_CYCLE, MAX_BLOOD_PUMP_PWM_DUTY_CYCLE );
 
     // Initialize persistent alarm for flow sensor signal strength too low
-    initPersistentAlarm( PERSISTENT_ALARM_BLOOD_FLOW_SIGNAL_STRENGTH,
-                         ALARM_ID_BLOOD_FLOW_SIGNAL_STRENGTH_TOO_LOW,
-                         FALSE, FLOW_SIG_STRGTH_ALARM_PERSIST, FLOW_SIG_STRGTH_ALARM_PERSIST );
+    initPersistentAlarm( ALARM_ID_BLOOD_FLOW_SIGNAL_STRENGTH_TOO_LOW, FLOW_SIG_STRGTH_ALARM_PERSIST, FLOW_SIG_STRGTH_ALARM_PERSIST );
 }
 
 /*********************************************************************//**
@@ -1242,7 +1240,10 @@
         F32  sigStrength = getMeasuredBloodFlowSignalStrength();
         BOOL outOfRange = ( sigStrength < MIN_FLOW_SIG_STRENGTH ? TRUE : FALSE );
 
-        checkPersistentAlarm( PERSISTENT_ALARM_BLOOD_FLOW_SIGNAL_STRENGTH, outOfRange, sigStrength, MIN_FLOW_SIG_STRENGTH );
+        if ( TRUE == isPersistentAlarmTriggered( ALARM_ID_BLOOD_FLOW_SIGNAL_STRENGTH_TOO_LOW, outOfRange ) )
+        {
+            SET_ALARM_WITH_2_F32_DATA( ALARM_ID_BLOOD_FLOW_SIGNAL_STRENGTH_TOO_LOW, sigStrength, MIN_FLOW_SIG_STRENGTH );
+        }
     }
 #endif
 }