diff --git a/tests/components/airzone/test_coordinator.py b/tests/components/airzone/test_coordinator.py
new file mode 100644
index 00000000000..00ef0616b3e
--- /dev/null
+++ b/tests/components/airzone/test_coordinator.py
@@ -0,0 +1,39 @@
+"""Define tests for the Airzone coordinator."""
+
+from unittest.mock import MagicMock, patch
+
+from aiohttp import ClientConnectorError
+
+from homeassistant.components.airzone.const import DOMAIN
+from homeassistant.components.airzone.coordinator import SCAN_INTERVAL
+from homeassistant.const import STATE_UNAVAILABLE
+from homeassistant.core import HomeAssistant
+from homeassistant.util.dt import utcnow
+
+from .util import CONFIG, HVAC_MOCK
+
+from tests.common import MockConfigEntry, async_fire_time_changed
+
+
+async def test_coordinator_client_connector_error(hass: HomeAssistant):
+    """Test ClientConnectorError on coordinator update."""
+
+    entry = MockConfigEntry(domain=DOMAIN, data=CONFIG)
+    entry.add_to_hass(hass)
+
+    with patch(
+        "homeassistant.components.airzone.AirzoneLocalApi.get_hvac",
+        return_value=HVAC_MOCK,
+    ) as mock_hvac:
+        await hass.config_entries.async_setup(entry.entry_id)
+        await hass.async_block_till_done()
+        mock_hvac.assert_called_once()
+        mock_hvac.reset_mock()
+
+        mock_hvac.side_effect = ClientConnectorError(MagicMock(), MagicMock())
+        async_fire_time_changed(hass, utcnow() + SCAN_INTERVAL)
+        await hass.async_block_till_done()
+        mock_hvac.assert_called_once()
+
+        state = hass.states.get("sensor.despacho_temperature")
+        assert state.state == STATE_UNAVAILABLE