diff --git a/homeassistant/components/coolmaster/binary_sensor.py b/homeassistant/components/coolmaster/binary_sensor.py
index 29fd5797124..884d38c77dc 100644
--- a/homeassistant/components/coolmaster/binary_sensor.py
+++ b/homeassistant/components/coolmaster/binary_sensor.py
@@ -37,7 +37,6 @@ class CoolmasterCleanFilter(CoolmasterEntity, BinarySensorEntity):
         translation_key="clean_filter",
         device_class=BinarySensorDeviceClass.PROBLEM,
         entity_category=EntityCategory.DIAGNOSTIC,
-        icon="mdi:air-filter",
     )
 
     @property
diff --git a/homeassistant/components/coolmaster/button.py b/homeassistant/components/coolmaster/button.py
index e4dfb371a0b..db9dd55ea0b 100644
--- a/homeassistant/components/coolmaster/button.py
+++ b/homeassistant/components/coolmaster/button.py
@@ -32,7 +32,6 @@ class CoolmasterResetFilter(CoolmasterEntity, ButtonEntity):
         key="reset_filter",
         translation_key="reset_filter",
         entity_category=EntityCategory.CONFIG,
-        icon="mdi:air-filter",
     )
 
     async def async_press(self) -> None:
diff --git a/homeassistant/components/coolmaster/icons.json b/homeassistant/components/coolmaster/icons.json
new file mode 100644
index 00000000000..f69e60fdee3
--- /dev/null
+++ b/homeassistant/components/coolmaster/icons.json
@@ -0,0 +1,19 @@
+{
+  "entity": {
+    "binary_sensor": {
+      "clean_filter": {
+        "default": "mdi:air-filter"
+      }
+    },
+    "button": {
+      "reset_filter": {
+        "default": "mdi:air-filter"
+      }
+    },
+    "sensor": {
+      "error_code": {
+        "default": "mdi:alert"
+      }
+    }
+  }
+}
diff --git a/homeassistant/components/coolmaster/sensor.py b/homeassistant/components/coolmaster/sensor.py
index 5c6774e8c92..30b22f4f658 100644
--- a/homeassistant/components/coolmaster/sensor.py
+++ b/homeassistant/components/coolmaster/sensor.py
@@ -32,7 +32,6 @@ class CoolmasterCleanFilter(CoolmasterEntity, SensorEntity):
         key="error_code",
         translation_key="error_code",
         entity_category=EntityCategory.DIAGNOSTIC,
-        icon="mdi:alert",
     )
 
     @property