diff --git a/usrc/app/dmapp.cpp b/usrc/app/dmapp.cpp
index 8b6c66f..e964a36 100644
--- a/usrc/app/dmapp.cpp
+++ b/usrc/app/dmapp.cpp
@@ -40,7 +40,7 @@ void DisinfectionApp::initialize() {
    ***********************************************************************************************************************/
   if (PORT::isPowerCtrlBoard() && (PORT::isLargeSpaceDM() || PORT::isSamllSpaceDM() || PORT::isPipeDM())) {
     LargeSpaceDmPowerCtrlBoardHal::HADC1_INIT();
-    heaterCtrler.initialize(PC7, &hadc1, ADC_CHANNEL_2, &hadc1, ADC_CHANNEL_4);
+    heaterCtrler.initialize(PC7, &hadc1, ADC_CHANNEL_2, &hadc1, ADC_CHANNEL_9);
   }
 
   /***********************************************************************************************************************