diff --git a/homeassistant/components/wallbox/sensor.py b/homeassistant/components/wallbox/sensor.py
index 57f2176febb..9a7fd1a21a3 100644
--- a/homeassistant/components/wallbox/sensor.py
+++ b/homeassistant/components/wallbox/sensor.py
@@ -169,14 +169,8 @@ class WallboxSensor(WallboxEntity, SensorEntity):
     def native_value(self) -> StateType:
         """Return the state of the sensor."""
         if (sensor_round := self.entity_description.precision) is not None:
-            try:
-                return cast(
-                    StateType,
-                    round(
-                        self.coordinator.data[self.entity_description.key], sensor_round
-                    ),
-                )
-            except TypeError:
-                _LOGGER.debug("Cannot format %s", self._attr_name)
-                return None
+            return cast(
+                StateType,
+                round(self.coordinator.data[self.entity_description.key], sensor_round),
+            )
         return cast(StateType, self.coordinator.data[self.entity_description.key])