diff --git a/homeassistant/components/totalconnect/alarm_control_panel.py b/homeassistant/components/totalconnect/alarm_control_panel.py
index 9ed29ea01c8..e31e6085832 100644
--- a/homeassistant/components/totalconnect/alarm_control_panel.py
+++ b/homeassistant/components/totalconnect/alarm_control_panel.py
@@ -97,22 +97,6 @@ class TotalConnectAlarm(TotalConnectLocationEntity, AlarmControlPanelEntity):
     @property
     def alarm_state(self) -> AlarmControlPanelState | None:
         """Return the state of the device."""
-        # State attributes can be removed in 2025.3
-        attr = {
-            "location_id": self._location.location_id,
-            "partition": self._partition_id,
-            "ac_loss": self._location.ac_loss,
-            "low_battery": self._location.low_battery,
-            "cover_tampered": self._location.is_cover_tampered(),
-            "triggered_source": None,
-            "triggered_zone": None,
-        }
-
-        if self._partition_id == 1:
-            attr["location_name"] = self.device.name
-        else:
-            attr["location_name"] = f"{self.device.name} partition {self._partition_id}"
-
         state: AlarmControlPanelState | None = None
         if self._partition.arming_state.is_disarmed():
             state = AlarmControlPanelState.DISARMED
@@ -128,17 +112,12 @@ class TotalConnectAlarm(TotalConnectLocationEntity, AlarmControlPanelEntity):
             state = AlarmControlPanelState.ARMING
         elif self._partition.arming_state.is_disarming():
             state = AlarmControlPanelState.DISARMING
-        elif self._partition.arming_state.is_triggered_police():
+        elif (
+            self._partition.arming_state.is_triggered_police()
+            or self._partition.arming_state.is_triggered_fire()
+            or self._partition.arming_state.is_triggered_gas()
+        ):
             state = AlarmControlPanelState.TRIGGERED
-            attr["triggered_source"] = "Police/Medical"
-        elif self._partition.arming_state.is_triggered_fire():
-            state = AlarmControlPanelState.TRIGGERED
-            attr["triggered_source"] = "Fire/Smoke"
-        elif self._partition.arming_state.is_triggered_gas():
-            state = AlarmControlPanelState.TRIGGERED
-            attr["triggered_source"] = "Carbon Monoxide"
-
-        self._attr_extra_state_attributes = attr
 
         return state
 
diff --git a/tests/components/totalconnect/snapshots/test_alarm_control_panel.ambr b/tests/components/totalconnect/snapshots/test_alarm_control_panel.ambr
index a63319a6c76..ac32b50762f 100644
--- a/tests/components/totalconnect/snapshots/test_alarm_control_panel.ambr
+++ b/tests/components/totalconnect/snapshots/test_alarm_control_panel.ambr
@@ -36,19 +36,11 @@
 # name: test_attributes[alarm_control_panel.test-state]
   StateSnapshot({
     'attributes': ReadOnlyDict({
-      'ac_loss': False,
       'changed_by': None,
       'code_arm_required': False,
       'code_format': None,
-      'cover_tampered': False,
       'friendly_name': 'test',
-      'location_id': 123456,
-      'location_name': 'test',
-      'low_battery': False,
-      'partition': 1,
       'supported_features': <AlarmControlPanelEntityFeature: 7>,
-      'triggered_source': None,
-      'triggered_zone': None,
     }),
     'context': <ANY>,
     'entity_id': 'alarm_control_panel.test',
@@ -95,19 +87,11 @@
 # name: test_attributes[alarm_control_panel.test_partition_2-state]
   StateSnapshot({
     'attributes': ReadOnlyDict({
-      'ac_loss': False,
       'changed_by': None,
       'code_arm_required': False,
       'code_format': None,
-      'cover_tampered': False,
       'friendly_name': 'test Partition 2',
-      'location_id': 123456,
-      'location_name': 'test partition 2',
-      'low_battery': False,
-      'partition': 2,
       'supported_features': <AlarmControlPanelEntityFeature: 7>,
-      'triggered_source': None,
-      'triggered_zone': None,
     }),
     'context': <ANY>,
     'entity_id': 'alarm_control_panel.test_partition_2',
diff --git a/tests/components/totalconnect/test_alarm_control_panel.py b/tests/components/totalconnect/test_alarm_control_panel.py
index bc76f7243ca..6ba067b8ae2 100644
--- a/tests/components/totalconnect/test_alarm_control_panel.py
+++ b/tests/components/totalconnect/test_alarm_control_panel.py
@@ -50,9 +50,6 @@ from .common import (
     RESPONSE_DISARMED,
     RESPONSE_DISARMING,
     RESPONSE_SUCCESS,
-    RESPONSE_TRIGGERED_CARBON_MONOXIDE,
-    RESPONSE_TRIGGERED_FIRE,
-    RESPONSE_TRIGGERED_POLICE,
     RESPONSE_UNKNOWN,
     RESPONSE_USER_CODE_INVALID,
     TOTALCONNECT_REQUEST,
@@ -195,7 +192,7 @@ async def test_arm_home_instant_failure(hass: HomeAssistant) -> None:
                 DOMAIN, SERVICE_ALARM_ARM_HOME_INSTANT, DATA, blocking=True
             )
         await hass.async_block_till_done()
-        assert f"{err.value}" == "Usercode is invalid, did not arm home instant"
+        assert str(err.value) == "Usercode is invalid, did not arm home instant"
         assert hass.states.get(ENTITY_ID).state == AlarmControlPanelState.DISARMED
         # should have started a re-auth flow
         assert len(hass.config_entries.flow.async_progress_by_handler(DOMAIN)) == 1
@@ -513,45 +510,6 @@ async def test_disarming(hass: HomeAssistant, freezer: FrozenDateTimeFactory) ->
         assert hass.states.get(ENTITY_ID).state == AlarmControlPanelState.DISARMING
 
 
-async def test_triggered_fire(hass: HomeAssistant) -> None:
-    """Test triggered by fire."""
-    responses = [RESPONSE_TRIGGERED_FIRE]
-    await setup_platform(hass, ALARM_DOMAIN)
-    with patch(TOTALCONNECT_REQUEST, side_effect=responses) as mock_request:
-        await async_update_entity(hass, ENTITY_ID)
-        await hass.async_block_till_done()
-        state = hass.states.get(ENTITY_ID)
-        assert state.state == AlarmControlPanelState.TRIGGERED
-        assert state.attributes.get("triggered_source") == "Fire/Smoke"
-        assert mock_request.call_count == 1
-
-
-async def test_triggered_police(hass: HomeAssistant) -> None:
-    """Test triggered by police."""
-    responses = [RESPONSE_TRIGGERED_POLICE]
-    await setup_platform(hass, ALARM_DOMAIN)
-    with patch(TOTALCONNECT_REQUEST, side_effect=responses) as mock_request:
-        await async_update_entity(hass, ENTITY_ID)
-        await hass.async_block_till_done()
-        state = hass.states.get(ENTITY_ID)
-        assert state.state == AlarmControlPanelState.TRIGGERED
-        assert state.attributes.get("triggered_source") == "Police/Medical"
-        assert mock_request.call_count == 1
-
-
-async def test_triggered_carbon_monoxide(hass: HomeAssistant) -> None:
-    """Test triggered by carbon monoxide."""
-    responses = [RESPONSE_TRIGGERED_CARBON_MONOXIDE]
-    await setup_platform(hass, ALARM_DOMAIN)
-    with patch(TOTALCONNECT_REQUEST, side_effect=responses) as mock_request:
-        await async_update_entity(hass, ENTITY_ID)
-        await hass.async_block_till_done()
-        state = hass.states.get(ENTITY_ID)
-        assert state.state == AlarmControlPanelState.TRIGGERED
-        assert state.attributes.get("triggered_source") == "Carbon Monoxide"
-        assert mock_request.call_count == 1
-
-
 async def test_armed_custom(hass: HomeAssistant) -> None:
     """Test armed custom."""
     responses = [RESPONSE_ARMED_CUSTOM]