diff --git a/lib/pages/routiens/helper/ac_helper.dart b/lib/pages/routiens/helper/ac_helper.dart
index 9ba0b224..d940f4e4 100644
--- a/lib/pages/routiens/helper/ac_helper.dart
+++ b/lib/pages/routiens/helper/ac_helper.dart
@@ -13,210 +13,203 @@ class ACHelper {
     List<DeviceFunction<dynamic>> functions,
   ) async {
     List<ACFunction> acFunctions = functions.whereType<ACFunction>().toList();
-    String? selectedFunction;
-    dynamic selectedValue = 20;
-    String? selectedCondition = "==";
-    List<bool> _selectedConditions = [false, true, false];
+    final selectedFunctionNotifier = ValueNotifier<String?>(null);
+    final selectedValueNotifier = ValueNotifier<dynamic>(null);
+    final selectedConditionNotifier = ValueNotifier<String?>('==');
+    final selectedConditionsNotifier =
+        ValueNotifier<List<bool>>([false, true, false]);
 
     return showDialog<Map<String, dynamic>?>(
       context: context,
       builder: (BuildContext context) {
-        return StatefulBuilder(
-          builder: (context, setState) {
+        return ValueListenableBuilder<String?>(
+          valueListenable: selectedFunctionNotifier,
+          builder: (context, selectedFunction, _) {
             return AlertDialog(
               contentPadding: EdgeInsets.zero,
-              content: _buildDialogContent(
-                context,
-                setState,
-                acFunctions,
-                selectedFunction,
-                selectedValue,
-                selectedCondition,
-                _selectedConditions,
-                (fn) => selectedFunction = fn,
-                (val) => selectedValue = val,
-                (cond) => selectedCondition = cond,
+              content: Container(
+                width: selectedFunction != null ? 600 : 360,
+                height: 450,
+                decoration: BoxDecoration(
+                  color: Colors.white,
+                  borderRadius: BorderRadius.circular(20),
+                ),
+                padding: const EdgeInsets.only(top: 20),
+                child: Column(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    const DialogHeader('AC Functions'),
+                    Expanded(
+                      child: Row(
+                        crossAxisAlignment: CrossAxisAlignment.stretch,
+                        children: [
+                          // Function list
+                          SizedBox(
+                            width: selectedFunction != null ? 320 : 360,
+                            child: _buildFunctionsList(
+                              context,
+                              acFunctions,
+                              selectedFunctionNotifier,
+                            ),
+                          ),
+                          // Value selector
+                          if (selectedFunction != null)
+                            Expanded(
+                              child: _buildValueSelector(
+                                context,
+                                selectedFunction,
+                                selectedValueNotifier,
+                                selectedConditionNotifier,
+                                selectedConditionsNotifier,
+                                acFunctions,
+                              ),
+                            ),
+                        ],
+                      ),
+                    ),
+                    DialogFooter(
+                      onCancel: () {
+                        selectedFunctionNotifier.dispose();
+                        selectedValueNotifier.dispose();
+                        selectedConditionNotifier.dispose();
+                        selectedConditionsNotifier.dispose();
+                        Navigator.pop(context);
+                      },
+                      onConfirm: selectedFunctionNotifier.value != null &&
+                              selectedValueNotifier.value != null
+                          ? () {
+                              selectedFunctionNotifier.dispose();
+                              selectedValueNotifier.dispose();
+                              selectedConditionNotifier.dispose();
+                              selectedConditionsNotifier.dispose();
+                              Navigator.pop(context, {
+                                'function': selectedFunctionNotifier.value,
+                                'value': selectedValueNotifier.value,
+                                'condition':
+                                    selectedConditionNotifier.value ?? "==",
+                              });
+                            }
+                          : null,
+                      isConfirmEnabled: selectedFunction != null,
+                    ),
+                  ],
+                ),
               ),
             );
           },
         );
       },
-    );
-  }
-
-  /// Build dialog content for AC functions dialog
-  static Widget _buildDialogContent(
-    BuildContext context,
-    StateSetter setState,
-    List<ACFunction> acFunctions,
-    String? selectedFunction,
-    dynamic selectedValue,
-    String? selectedCondition,
-    List<bool> selectedConditions,
-    Function(String?) onFunctionSelected,
-    Function(dynamic) onValueSelected,
-    Function(String?) onConditionSelected,
-  ) {
-    return Container(
-      width: selectedFunction != null ? 600 : 360,
-      height: 450,
-      decoration: BoxDecoration(
-        color: Colors.white,
-        borderRadius: BorderRadius.circular(20),
-      ),
-      padding: const EdgeInsets.only(top: 20),
-      child: Column(
-        mainAxisSize: MainAxisSize.min,
-        children: [
-          const DialogHeader('AC Functions'),
-          Flexible(
-            child: Row(
-              children: [
-                _buildFunctionsList(
-                  context,
-                  setState,
-                  acFunctions,
-                  selectedFunction,
-                  onFunctionSelected,
-                ),
-                if (selectedFunction != null)
-                  _buildValueSelector(
-                    context,
-                    setState,
-                    selectedFunction,
-                    selectedValue,
-                    selectedCondition,
-                    selectedConditions,
-                    onValueSelected,
-                    onConditionSelected,
-                    acFunctions,
-                  ),
-              ],
-            ),
-          ),
-          DialogFooter(
-            onCancel: () => Navigator.pop(context),
-            onConfirm: selectedFunction != null && selectedValue != null
-                ? () => Navigator.pop(context, {
-                      'function': selectedFunction,
-                      'value': selectedValue,
-                      'condition': selectedCondition ?? "==",
-                    })
-                : null,
-            isConfirmEnabled: selectedFunction != null && selectedValue != null,
-          ),
-        ],
-      ),
-    );
+    ).then((value) {
+      selectedFunctionNotifier.dispose();
+      selectedValueNotifier.dispose();
+      selectedConditionNotifier.dispose();
+      selectedConditionsNotifier.dispose();
+      return value;
+    });
   }
 
   /// Build functions list for AC functions dialog
   static Widget _buildFunctionsList(
     BuildContext context,
-    StateSetter setState,
     List<ACFunction> acFunctions,
-    String? selectedFunction,
-    Function(String?) onFunctionSelected,
+    ValueNotifier<String?> selectedFunctionNotifier,
   ) {
-    return Expanded(
-      child: ListView.separated(
-        shrinkWrap: false,
-        physics: const AlwaysScrollableScrollPhysics(),
-        itemCount: acFunctions.length,
-        separatorBuilder: (context, index) => const Divider(
+    return ListView.separated(
+      shrinkWrap: false,
+      physics: const AlwaysScrollableScrollPhysics(),
+      itemCount: acFunctions.length,
+      separatorBuilder: (context, index) => const Padding(
+        padding: EdgeInsets.symmetric(horizontal: 40.0),
+        child: Divider(
           color: ColorsManager.dividerColor,
         ),
-        itemBuilder: (context, index) {
-          final function = acFunctions[index];
-          return ListTile(
-            leading: SvgPicture.asset(
-              function.icon,
+      ),
+      itemBuilder: (context, index) {
+        final function = acFunctions[index];
+        return ListTile(
+          leading: SvgPicture.asset(
+            function.icon,
+            width: 24,
+            height: 24,
+            placeholderBuilder: (BuildContext context) => Container(
               width: 24,
               height: 24,
+              color: Colors.transparent,
             ),
-            title: Text(
-              function.operationName,
-              style: context.textTheme.bodyMedium,
-            ),
-            trailing: const Icon(
-              Icons.arrow_forward_ios,
-              size: 16,
-              color: ColorsManager.textGray,
-            ),
-            onTap: () => setState(() => onFunctionSelected(function.code)),
-          );
-        },
-      ),
+          ),
+          title: Text(
+            function.operationName,
+            style: context.textTheme.bodyMedium,
+          ),
+          trailing: const Icon(
+            Icons.arrow_forward_ios,
+            size: 16,
+            color: ColorsManager.textGray,
+          ),
+          onTap: () => selectedFunctionNotifier.value = function.code,
+        );
+      },
     );
   }
 
   /// Build value selector for AC functions dialog
   static Widget _buildValueSelector(
     BuildContext context,
-    StateSetter setState,
     String selectedFunction,
-    dynamic selectedValue,
-    String? selectedCondition,
-    List<bool> selectedConditions,
-    Function(dynamic) onValueSelected,
-    Function(String?) onConditionSelected,
+    ValueNotifier<dynamic> selectedValueNotifier,
+    ValueNotifier<String?> selectedConditionNotifier,
+    ValueNotifier<List<bool>> selectedConditionsNotifier,
     List<ACFunction> acFunctions,
   ) {
+    // Handle temperature functions
     if (selectedFunction == 'temp_set' || selectedFunction == 'temp_current') {
-      return Expanded(
-        child: _buildTemperatureSelector(
-          context,
-          setState,
-          selectedValue,
-          selectedCondition,
-          selectedConditions,
-          onValueSelected,
-          onConditionSelected,
-        ),
+      // Initialize with 20°C (200 in internal representation)
+      if (selectedValueNotifier.value == null ||
+          selectedValueNotifier.value is! int) {
+        selectedValueNotifier.value = 200;
+      }
+      return _buildTemperatureSelector(
+        context,
+        selectedValueNotifier,
+        selectedConditionNotifier,
+        selectedConditionsNotifier,
       );
     }
 
+    // Handle other functions
     final selectedFn =
         acFunctions.firstWhere((f) => f.code == selectedFunction);
     final values = selectedFn.getOperationalValues();
-    return Expanded(
-      child: _buildOperationalValuesList(
-        context,
-        setState,
-        values,
-        selectedValue,
-        onValueSelected,
-      ),
+
+    // Don't set any default value for non-temperature functions
+    return _buildOperationalValuesList(
+      context,
+      values,
+      selectedValueNotifier,
     );
   }
 
   /// Build temperature selector for AC functions dialog
   static Widget _buildTemperatureSelector(
     BuildContext context,
-    StateSetter setState,
-    dynamic selectedValue,
-    String? selectedCondition,
-    List<bool> selectedConditions,
-    Function(dynamic) onValueSelected,
-    Function(String?) onConditionSelected,
+    ValueNotifier<dynamic> selectedValueNotifier,
+    ValueNotifier<String?> selectedConditionNotifier,
+    ValueNotifier<List<bool>> selectedConditionsNotifier,
   ) {
     return Column(
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
         _buildConditionToggle(
           context,
-          setState,
-          selectedConditions,
-          onConditionSelected,
+          selectedConditionNotifier,
+          selectedConditionsNotifier,
         ),
         const SizedBox(height: 20),
-        _buildTemperatureDisplay(context, selectedValue),
+        _buildTemperatureDisplay(context, selectedValueNotifier),
         const SizedBox(height: 20),
         _buildTemperatureSlider(
           context,
-          setState,
-          selectedValue,
-          onValueSelected,
+          selectedValueNotifier,
         ),
       ],
     );
@@ -225,104 +218,121 @@ class ACHelper {
   /// Build condition toggle for AC functions dialog
   static Widget _buildConditionToggle(
     BuildContext context,
-    StateSetter setState,
-    List<bool> selectedConditions,
-    Function(String?) onConditionSelected,
+    ValueNotifier<String?> selectedConditionNotifier,
+    ValueNotifier<List<bool>> selectedConditionsNotifier,
   ) {
-    return ToggleButtons(
-      onPressed: (int index) {
-        setState(() {
-          for (int i = 0; i < selectedConditions.length; i++) {
-            selectedConditions[i] = i == index;
-          }
-          onConditionSelected(index == 0
-              ? "<"
-              : index == 1
-                  ? "=="
-                  : ">");
-        });
+    return ValueListenableBuilder<List<bool>>(
+      valueListenable: selectedConditionsNotifier,
+      builder: (context, selectedConditions, _) {
+        return ToggleButtons(
+          onPressed: (int index) {
+            final newConditions = [false, false, false];
+            newConditions[index] = true;
+            selectedConditionsNotifier.value = newConditions;
+            selectedConditionNotifier.value = index == 0
+                ? "<"
+                : index == 1
+                    ? "=="
+                    : ">";
+          },
+          borderRadius: const BorderRadius.all(Radius.circular(8)),
+          selectedBorderColor: ColorsManager.primaryColorWithOpacity,
+          selectedColor: Colors.white,
+          fillColor: ColorsManager.primaryColorWithOpacity,
+          color: ColorsManager.primaryColorWithOpacity,
+          constraints: const BoxConstraints(
+            minHeight: 40.0,
+            minWidth: 40.0,
+          ),
+          isSelected: selectedConditions,
+          children: const [Text("<"), Text("="), Text(">")],
+        );
       },
-      borderRadius: const BorderRadius.all(Radius.circular(8)),
-      selectedBorderColor: ColorsManager.primaryColorWithOpacity,
-      selectedColor: Colors.white,
-      fillColor: ColorsManager.primaryColorWithOpacity,
-      color: ColorsManager.primaryColorWithOpacity,
-      constraints: const BoxConstraints(
-        minHeight: 40.0,
-        minWidth: 40.0,
-      ),
-      isSelected: selectedConditions,
-      children: const [Text("<"), Text("="), Text(">")],
     );
   }
 
   /// Build temperature display for AC functions dialog
   static Widget _buildTemperatureDisplay(
-      BuildContext context, dynamic selectedValue) {
+      BuildContext context, ValueNotifier<dynamic> selectedValueNotifier) {
     return Container(
       padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
       decoration: BoxDecoration(
         color: ColorsManager.primaryColorWithOpacity.withOpacity(0.1),
         borderRadius: BorderRadius.circular(10),
       ),
-      child: Text(
-        '${selectedValue ?? 20}°C',
-        style: context.textTheme.headlineMedium!.copyWith(
-          color: ColorsManager.primaryColorWithOpacity,
-        ),
+      child: ValueListenableBuilder(
+        valueListenable: selectedValueNotifier,
+        builder: (context, selectedValue, child) {
+          return Text(
+            '${(selectedValue ?? 200) / 10}°C',
+            style: context.textTheme.headlineMedium!.copyWith(
+              color: ColorsManager.primaryColorWithOpacity,
+            ),
+          );
+        },
       ),
     );
   }
 
   static Widget _buildTemperatureSlider(
     BuildContext context,
-    StateSetter setState,
-    dynamic selectedValue,
-    Function(dynamic) onValueSelected,
+    ValueNotifier<dynamic> selectedValueNotifier,
   ) {
-    final currentValue = selectedValue is int ? selectedValue.toDouble() : 20.0;
-    return Slider(
-      value: currentValue,
-      min: 16,
-      max: 30,
-      divisions: 14,
-      label: '${currentValue.toInt()}°C',
-      onChanged: (value) {
-        setState(() => onValueSelected(value.toInt()));
+    return ValueListenableBuilder(
+      valueListenable: selectedValueNotifier,
+      builder: (context, selectedValue, child) {
+        final currentValue =
+            selectedValue is int ? selectedValue.toDouble() : 200.0;
+        return Slider(
+          value: currentValue,
+          min: 160,
+          max: 300,
+          divisions: 14,
+          label: '${(currentValue / 10).toInt()}°C',
+          onChanged: (value) => selectedValueNotifier.value = value.toInt(),
+        );
       },
     );
   }
 
   static Widget _buildOperationalValuesList(
     BuildContext context,
-    StateSetter setState,
     List<dynamic> values,
-    dynamic selectedValue,
-    Function(dynamic) onValueSelected,
+    ValueNotifier<dynamic> selectedValueNotifier,
   ) {
-    return ListView.builder(
-      shrinkWrap: false,
-      physics: const AlwaysScrollableScrollPhysics(),
-      itemCount: values.length,
-      itemBuilder: (context, index) {
-        final value = values[index];
-        return ListTile(
-          leading: SvgPicture.asset(
-            value.icon,
-            width: 24,
-            height: 24,
-          ),
-          title: Text(
-            value.description,
-            style: context.textTheme.bodyMedium,
-          ),
-          trailing: Radio<dynamic>(
-            value: value.value,
-            groupValue: selectedValue,
-            onChanged: (newValue) {
-              setState(() => onValueSelected(newValue));
-            },
-          ),
+    return ValueListenableBuilder<dynamic>(
+      valueListenable: selectedValueNotifier,
+      builder: (context, selectedValue, _) {
+        return ListView.builder(
+          shrinkWrap: false,
+          physics: const AlwaysScrollableScrollPhysics(),
+          itemCount: values.length,
+          itemBuilder: (context, index) {
+            final value = values[index];
+            return ListTile(
+              leading: SvgPicture.asset(
+                value.icon,
+                width: 24,
+                height: 24,
+                placeholderBuilder: (BuildContext context) => Container(
+                  width: 24,
+                  height: 24,
+                  color: Colors.transparent,
+                ),
+              ),
+              title: Text(
+                value.description,
+                style: context.textTheme.bodyMedium,
+              ),
+              trailing: Radio<dynamic>(
+                value: value.value,
+                groupValue: selectedValue,
+                onChanged: (_) => selectedValueNotifier.value = value.value,
+                activeColor: ColorsManager.primaryColorWithOpacity,
+              ),
+              onTap: () => selectedValueNotifier.value = value.value,
+            );
+          },
         );
       },
     );