diff --git a/homeassistant/components/home_connect/sensor.py b/homeassistant/components/home_connect/sensor.py
index 971f87d72fd..d9f45c8c31d 100644
--- a/homeassistant/components/home_connect/sensor.py
+++ b/homeassistant/components/home_connect/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.components.sensor import (
     SensorEntityDescription,
     SensorStateClass,
 )
-from homeassistant.const import PERCENTAGE, UnitOfTime, UnitOfVolume
+from homeassistant.const import PERCENTAGE, EntityCategory, UnitOfTime, UnitOfVolume
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
 from homeassistant.util import dt as dt_util, slugify
@@ -99,16 +99,19 @@ SENSORS = (
     ),
     HomeConnectSensorEntityDescription(
         key=StatusKey.CONSUMER_PRODUCTS_COFFEE_MAKER_BEVERAGE_COUNTER_COFFEE,
+        entity_category=EntityCategory.DIAGNOSTIC,
         state_class=SensorStateClass.TOTAL_INCREASING,
         translation_key="coffee_counter",
     ),
     HomeConnectSensorEntityDescription(
         key=StatusKey.CONSUMER_PRODUCTS_COFFEE_MAKER_BEVERAGE_COUNTER_POWDER_COFFEE,
+        entity_category=EntityCategory.DIAGNOSTIC,
         state_class=SensorStateClass.TOTAL_INCREASING,
         translation_key="powder_coffee_counter",
     ),
     HomeConnectSensorEntityDescription(
         key=StatusKey.CONSUMER_PRODUCTS_COFFEE_MAKER_BEVERAGE_COUNTER_HOT_WATER,
+        entity_category=EntityCategory.DIAGNOSTIC,
         native_unit_of_measurement=UnitOfVolume.MILLILITERS,
         device_class=SensorDeviceClass.VOLUME,
         state_class=SensorStateClass.TOTAL_INCREASING,
@@ -116,31 +119,37 @@ SENSORS = (
     ),
     HomeConnectSensorEntityDescription(
         key=StatusKey.CONSUMER_PRODUCTS_COFFEE_MAKER_BEVERAGE_COUNTER_HOT_WATER_CUPS,
+        entity_category=EntityCategory.DIAGNOSTIC,
         state_class=SensorStateClass.TOTAL_INCREASING,
         translation_key="hot_water_cups_counter",
     ),
     HomeConnectSensorEntityDescription(
         key=StatusKey.CONSUMER_PRODUCTS_COFFEE_MAKER_BEVERAGE_COUNTER_HOT_MILK,
+        entity_category=EntityCategory.DIAGNOSTIC,
         state_class=SensorStateClass.TOTAL_INCREASING,
         translation_key="hot_milk_counter",
     ),
     HomeConnectSensorEntityDescription(
         key=StatusKey.CONSUMER_PRODUCTS_COFFEE_MAKER_BEVERAGE_COUNTER_FROTHY_MILK,
+        entity_category=EntityCategory.DIAGNOSTIC,
         state_class=SensorStateClass.TOTAL_INCREASING,
         translation_key="frothy_milk_counter",
     ),
     HomeConnectSensorEntityDescription(
         key=StatusKey.CONSUMER_PRODUCTS_COFFEE_MAKER_BEVERAGE_COUNTER_MILK,
+        entity_category=EntityCategory.DIAGNOSTIC,
         state_class=SensorStateClass.TOTAL_INCREASING,
         translation_key="milk_counter",
     ),
     HomeConnectSensorEntityDescription(
         key=StatusKey.CONSUMER_PRODUCTS_COFFEE_MAKER_BEVERAGE_COUNTER_COFFEE_AND_MILK,
+        entity_category=EntityCategory.DIAGNOSTIC,
         state_class=SensorStateClass.TOTAL_INCREASING,
         translation_key="coffee_and_milk_counter",
     ),
     HomeConnectSensorEntityDescription(
         key=StatusKey.CONSUMER_PRODUCTS_COFFEE_MAKER_BEVERAGE_COUNTER_RISTRETTO_ESPRESSO,
+        entity_category=EntityCategory.DIAGNOSTIC,
         state_class=SensorStateClass.TOTAL_INCREASING,
         translation_key="ristretto_espresso_counter",
     ),