diff --git a/homeassistant/components/lamarzocco/binary_sensor.py b/homeassistant/components/lamarzocco/binary_sensor.py
index c108bdb02d8..aacfca929ad 100644
--- a/homeassistant/components/lamarzocco/binary_sensor.py
+++ b/homeassistant/components/lamarzocco/binary_sensor.py
@@ -61,7 +61,10 @@ ENTITIES: tuple[LaMarzoccoBinarySensorEntityDescription, ...] = (
         device_class=BinarySensorDeviceClass.RUNNING,
         is_on_fn=(
             lambda machine: cast(
-                BackFlush, machine.dashboard.config[WidgetType.CM_BACK_FLUSH]
+                BackFlush,
+                machine.dashboard.config.get(
+                    WidgetType.CM_BACK_FLUSH, BackFlush(status=BackFlushStatus.OFF)
+                ),
             ).status
             is BackFlushStatus.REQUESTED
         ),
diff --git a/homeassistant/components/lamarzocco/sensor.py b/homeassistant/components/lamarzocco/sensor.py
index aecb2ff7f04..afe34005108 100644
--- a/homeassistant/components/lamarzocco/sensor.py
+++ b/homeassistant/components/lamarzocco/sensor.py
@@ -5,7 +5,7 @@ from dataclasses import dataclass
 from datetime import datetime
 from typing import cast
 
-from pylamarzocco.const import ModelName, WidgetType
+from pylamarzocco.const import BackFlushStatus, ModelName, WidgetType
 from pylamarzocco.models import (
     BackFlush,
     BaseWidgetOutput,
@@ -106,7 +106,10 @@ ENTITIES: tuple[LaMarzoccoSensorEntityDescription, ...] = (
         device_class=SensorDeviceClass.TIMESTAMP,
         value_fn=(
             lambda config: cast(
-                BackFlush, config[WidgetType.CM_BACK_FLUSH]
+                BackFlush,
+                config.get(
+                    WidgetType.CM_BACK_FLUSH, BackFlush(status=BackFlushStatus.OFF)
+                ),
             ).last_cleaning_start_time
         ),
         entity_category=EntityCategory.DIAGNOSTIC,