diff --git a/pytec/tec_qt.py b/pytec/tec_qt.py
index 996ffc2..b98dc5a 100644
--- a/pytec/tec_qt.py
+++ b/pytec/tec_qt.py
@@ -1,4 +1,4 @@
-from PyQt6 import QtWidgets
+from PyQt6 import QtWidgets, QtGui
 from PyQt6.QtCore import pyqtSignal, QObject, QSignalBlocker, pyqtSlot
 from pyqtgraph import PlotWidget
 from pyqtgraph.parametertree import Parameter, ParameterTree, ParameterItem, registerParameterType
@@ -97,18 +97,21 @@ class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
         self.connect_btn.setText("Disconnect" if result else "Connect")
         if not result:
             self.hw_rev_lbl.setText("Thermostat vX.Y")
-            self.fan_group.setStyleSheet("")
+            self.fan_pwm_warning.setPixmap(QtGui.QPixmap())
+            self.fan_pwm_warning.setToolTip("")
 
     def _hw_rev(self, hw_rev_d: dict):
         logging.debug(hw_rev_d)
         self.hw_rev_lbl.setText(f"Thermostat v{hw_rev_d['rev']['major']}.{hw_rev_d['rev']['minor']}")
         self.fan_group.setEnabled(hw_rev_d["settings"]["fan_available"])
         if hw_rev_d["settings"]["fan_pwm_recommended"]:
-            self.fan_group.setStyleSheet("")
-            self.fan_group.setToolTip("")
+            self.fan_pwm_warning.setPixmap(QtGui.QPixmap())
+            self.fan_pwm_warning.setToolTip("")
         else:
-            self.fan_group.setStyleSheet("background-color: yellow")
-            self.fan_group.setToolTip("fan_pwm not recommended on this hardware revision")
+            pixmapi = getattr(QtWidgets.QStyle.StandardPixmap, "SP_MessageBoxWarning")
+            icon = self.style().standardIcon(pixmapi)
+            self.fan_pwm_warning.setPixmap(icon.pixmap(16, 16))
+            self.fan_pwm_warning.setToolTip("Fan power adjustment not recommended on this hardware revision!")
 
     def fan_update(self, fan_settings):
         logging.debug(fan_settings)
diff --git a/pytec/tec_qt.ui b/pytec/tec_qt.ui
index b108b7c..0557111 100644
--- a/pytec/tec_qt.ui
+++ b/pytec/tec_qt.ui
@@ -503,6 +503,19 @@
                 <property name="spacing">
                  <number>9</number>
                 </property>
+                <item>
+                 <widget class="QLabel" name="fan_pwm_warning">
+                  <property name="minimumSize">
+                   <size>
+                    <width>16</width>
+                    <height>0</height>
+                   </size>
+                  </property>
+                  <property name="text">
+                   <string/>
+                  </property>
+                 </widget>
+                </item>
                 <item>
                  <widget class="QLabel" name="fan_lbl">
                   <property name="sizePolicy">
diff --git a/pytec/ui_tec_qt.py b/pytec/ui_tec_qt.py
index 0a727bb..bc06921 100644
--- a/pytec/ui_tec_qt.py
+++ b/pytec/ui_tec_qt.py
@@ -227,6 +227,11 @@ class Ui_MainWindow(object):
         self.gan_layout = QtWidgets.QHBoxLayout()
         self.gan_layout.setSpacing(9)
         self.gan_layout.setObjectName("gan_layout")
+        self.fan_pwm_warning = QtWidgets.QLabel(parent=self.fan_group)
+        self.fan_pwm_warning.setMinimumSize(QtCore.QSize(16, 0))
+        self.fan_pwm_warning.setText("")
+        self.fan_pwm_warning.setObjectName("fan_pwm_warning")
+        self.gan_layout.addWidget(self.fan_pwm_warning)
         self.fan_lbl = QtWidgets.QLabel(parent=self.fan_group)
         sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Policy.Fixed, QtWidgets.QSizePolicy.Policy.Expanding)
         sizePolicy.setHorizontalStretch(0)