Index: sources/gui/qml/pages/pretreatment/create/PreTreatmentCreateContent.qml
===================================================================
diff -u -r0d218c60b5108bf7f08558f4baa12f542efe6dbf -r9c283975831d27304df125df99a5dde0c640dbd8
--- sources/gui/qml/pages/pretreatment/create/PreTreatmentCreateContent.qml	(.../PreTreatmentCreateContent.qml)	(revision 0d218c60b5108bf7f08558f4baa12f542efe6dbf)
+++ sources/gui/qml/pages/pretreatment/create/PreTreatmentCreateContent.qml	(.../PreTreatmentCreateContent.qml)	(revision 9c283975831d27304df125df99a5dde0c640dbd8)
@@ -267,10 +267,8 @@
                         if ( ! _duration.valid ) { vTreatmentCreate.treatmentDurationRejectReason = Variables.noRejectReason }
                         vTreatmentCreate.treatmentDuration = value
 
-                        // set heparin time to clear when duration is changed
-                        if ( _heparinStopTimeControl.enabled ) {
-                            _heparinStopTimeControl.clear()
-                        }
+                        // set heparin time to clear when set
+                        if ( _heparinStopTimeControl.enabled ) { _heparinStopTimeControl.clear() }
                     }
                 }
             }
@@ -297,6 +295,9 @@
                             _heparinStopTimeControl.active = true
                             _heparinStopTimeControl.value = 0
                         }
+
+                        // set heparin time to clear when set
+                        if ( _heparinStopTimeControl.enabled ) { _heparinStopTimeControl.clear() }
                     }
 
                     onActiveChanged: {