Index: sources/gui/qml/components/Slider.qml
===================================================================
diff -u -r28845c70151c3fb6f1a8e92c82da0232b6ca854a -r6179111114213085810211b7311c033605c9d448
--- sources/gui/qml/components/Slider.qml	(.../Slider.qml)	(revision 28845c70151c3fb6f1a8e92c82da0232b6ca854a)
+++ sources/gui/qml/components/Slider.qml	(.../Slider.qml)	(revision 6179111114213085810211b7311c033605c9d448)
@@ -25,6 +25,7 @@
  */
 RangeRect { id: _root
     property real   value              : _progressRect.value
+    property real   defaultValue       : _root.minimum
 
     property real   step               : 1
     property bool   stepSnap           : false
@@ -57,6 +58,8 @@
     signal handleSelected()
     signal sliderSelected()
 
+    onDefaultValueChanged: refreshValue()
+
     // this function shall be used in case that any external value is forced to be set for the slider
     // like the OFF switch wants to externally set the slider value and bypass slider controlls and checks.
     // same is used in the main treatment Blood,dialyzer sliders to be set to the current value when get in to adjustment screen.
@@ -108,19 +111,29 @@
         }
     }
 
-    onIsActiveChanged: {
-        setActiveVisuals(isActive)
-
+    /*
+      refreshValue() re-evaluates the _root.value and _progressRect.value based on the
+      current active state. This function is used when the defaultValue property or
+      isActive property changes.
+    */
+    function refreshValue() {
         // value is assigned a different value based on active-ness of the slider
         // This is to resolve the use of slider with a switch and arrows enabled.
         // It allows correct behavior when using arrow on a first initialize increment of
         // the slider when the slider has inActiveZero to true.
         if(!isActive) {
-            _root.value = inActiveZero ? 0 : minimum
+            _root.value = inActiveZero ? 0 : _root.defaultValue
         } else {
-            _root.value = _progressRect.value = minimum
+            _root.value = _root.defaultValue
         }
 
+        // need to set the value of progressRect to reflect handle position
+        _progressRect.value = _root.defaultValue
+    }
+
+    onIsActiveChanged: {
+        setActiveVisuals(isActive)
+        refreshValue () // re-evaluate values
         activeChanged() // emit
     }