diff --git a/homeassistant/components/homewizard/coordinator.py b/homeassistant/components/homewizard/coordinator.py
index 533af445c84..fb89989b2a5 100644
--- a/homeassistant/components/homewizard/coordinator.py
+++ b/homeassistant/components/homewizard/coordinator.py
@@ -5,7 +5,7 @@ import logging
 
 from homewizard_energy import HomeWizardEnergy
 from homewizard_energy.const import SUPPORTS_IDENTIFY, SUPPORTS_STATE, SUPPORTS_SYSTEM
-from homewizard_energy.errors import DisabledError, RequestError
+from homewizard_energy.errors import DisabledError, RequestError, UnsupportedError
 from homewizard_energy.models import Device
 
 from homeassistant.config_entries import ConfigEntry
@@ -24,6 +24,8 @@ class HWEnergyDeviceUpdateCoordinator(DataUpdateCoordinator[DeviceResponseEntry]
     api: HomeWizardEnergy
     api_disabled: bool = False
 
+    _unsupported_error: bool = False
+
     def __init__(
         self,
         hass: HomeAssistant,
@@ -43,11 +45,22 @@ class HWEnergyDeviceUpdateCoordinator(DataUpdateCoordinator[DeviceResponseEntry]
                 data=await self.api.data(),
             )
 
-            if self.supports_state(data.device):
-                data.state = await self.api.state()
+            try:
+                if self.supports_state(data.device):
+                    data.state = await self.api.state()
 
-            if self.supports_system(data.device):
-                data.system = await self.api.system()
+                if self.supports_system(data.device):
+                    data.system = await self.api.system()
+
+            except UnsupportedError as ex:
+                # Old firmware, ignore
+                if not self._unsupported_error:
+                    self._unsupported_error = True
+                    _LOGGER.warning(
+                        "%s is running an outdated firmware version (%s). Contact HomeWizard support to update your device",
+                        self.entry.title,
+                        ex,
+                    )
 
         except RequestError as ex:
             raise UpdateFailed(ex) from ex
diff --git a/tests/components/homewizard/test_switch.py b/tests/components/homewizard/test_switch.py
index f55550ee825..6a2623e964f 100644
--- a/tests/components/homewizard/test_switch.py
+++ b/tests/components/homewizard/test_switch.py
@@ -1,7 +1,7 @@
 """Test the update coordinator for HomeWizard."""
 from unittest.mock import AsyncMock, patch
 
-from homewizard_energy.errors import DisabledError, RequestError
+from homewizard_energy.errors import DisabledError, RequestError, UnsupportedError
 from homewizard_energy.models import State, System
 import pytest
 
@@ -507,3 +507,39 @@ async def test_switch_handles_disablederror(
                 {"entity_id": "switch.product_name_aabbccddeeff_cloud_connection"},
                 blocking=True,
             )
+
+
+async def test_switch_handles_unsupportedrrror(
+    hass: HomeAssistant, mock_config_entry_data, mock_config_entry
+) -> None:
+    """Test entity raises HomeAssistantError when Disabled was raised."""
+
+    api = get_mock_device(product_type="HWE-SKT", firmware_version="3.02")
+    api.state = AsyncMock(side_effect=UnsupportedError())
+    api.system = AsyncMock(side_effect=UnsupportedError())
+
+    with patch(
+        "homeassistant.components.homewizard.coordinator.HomeWizardEnergy",
+        return_value=api,
+    ):
+        entry = mock_config_entry
+        entry.data = mock_config_entry_data
+        entry.add_to_hass(hass)
+
+        await hass.config_entries.async_setup(entry.entry_id)
+        await hass.async_block_till_done()
+
+        assert (
+            hass.states.get("switch.product_name_aabbccddeeff_cloud_connection").state
+            == STATE_UNAVAILABLE
+        )
+
+        assert (
+            hass.states.get("switch.product_name_aabbccddeeff_switch_lock").state
+            == STATE_UNAVAILABLE
+        )
+
+        assert (
+            hass.states.get("switch.product_name_aabbccddeeff").state
+            == STATE_UNAVAILABLE
+        )