Index: firmware/App/Controllers/SyringePump.c
===================================================================
diff -u -r9a824381a8c77e309b943bedcccc8df323bb26e3 -r80589ff9252c890a33e03a8fb000971e448de28c
--- firmware/App/Controllers/SyringePump.c	(.../SyringePump.c)	(revision 9a824381a8c77e309b943bedcccc8df323bb26e3)
+++ firmware/App/Controllers/SyringePump.c	(.../SyringePump.c)	(revision 80589ff9252c890a33e03a8fb000971e448de28c)
@@ -1592,9 +1592,10 @@
 {
     BOOL result = FALSE;                                       // Return FALSE if no occlusion is detected
     F32  forceAtEndOfPriming = getSyringePumpForceV();         // Read the force sensor at the end of the priming
-    F32  forceDelta = forceAtEndOfPriming - forceAtEndOfSeek;  // Occlusion is detected if force at end of prime is > than force at end of seek by ~ 0.5 volts
+    F32  forceDelta = forceAtEndOfPriming - forceAtEndOfSeek;  // Occlusion is detected if force at end of prime is > than force at end of seek by 0.5 volts or more
+    BOOL occlusionDetected = ( forceDelta >= SYRINGE_FORCE_OCCLUSION_DIFF_V ? TRUE : FALSE );
 
-    if ( TRUE == isPersistentAlarmTriggered( ALARM_ID_HD_SYRINGE_PUMP_OCCLUSION, ( forceDelta >= SYRINGE_FORCE_OCCLUSION_DIFF_V ) ) )
+    if ( TRUE == isPersistentAlarmTriggered( ALARM_ID_HD_SYRINGE_PUMP_OCCLUSION, occlusionDetected ) )
     {
         SET_ALARM_WITH_2_F32_DATA( ALARM_ID_HD_SYRINGE_PUMP_OCCLUSION, forceAtEndOfSeek, forceAtEndOfPriming  )  // reuse this alarm after prime
         forceAtEndOfSeek = 0.0;    // reset this value in case we want to prime again