diff --git a/app/gui/oven_control/waterlevelicon.cpp b/app/gui/oven_control/waterlevelicon.cpp
index dfc6c49..36bbda9 100644
--- a/app/gui/oven_control/waterlevelicon.cpp
+++ b/app/gui/oven_control/waterlevelicon.cpp
@@ -1,13 +1,16 @@
 #include "waterlevelicon.h"
 
+#include "define.h"
 #include "udphandler.h"
 
 WaterLevelIcon::WaterLevelIcon(QWidget *parent) : QLabel(parent)
 {
+#if MODEL_GRADE != 2
     connect(&timer, SIGNAL(timeout()), SLOT(check()));
     timer.start(1000);
 
     check();
+#endif
 }
 
 void WaterLevelIcon::check()