Index: firmware/App/Controllers/PresOccl.c
===================================================================
diff -u -rfa41b85cf47fb01cd905b2ed53d472a9cb0c1706 -r838df450f09668adbd73e61fadbff8c81fe7926e
--- firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision fa41b85cf47fb01cd905b2ed53d472a9cb0c1706)
+++ firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision 838df450f09668adbd73e61fadbff8c81fe7926e)
@@ -617,6 +617,7 @@
 {
     SELF_TEST_STATUS_T result = SELF_TEST_STATUS_PASSED;
 
+#ifndef DISABLE_OCCLUSION_SELF_TEST
     U32 const bpPressure = getMeasuredBloodPumpOcclusion();
     U32 const dialysateInPressure = getMeasuredDialInPumpOcclusion();
     U32 const dialysateOutPressure = getMeasuredDialOutPumpOcclusion();
@@ -648,6 +649,7 @@
             activateAlarmNoData( ALARM_ID_CARTRIDGE_INSTALLED_IMPROPERLY );
         }
     }
+#endif
 
     return result;
 }