diff --git a/custom_components/lennoxs30/climate.py b/custom_components/lennoxs30/climate.py
index 77b8ec4..0be6fbd 100644
--- a/custom_components/lennoxs30/climate.py
+++ b/custom_components/lennoxs30/climate.py
@@ -66,7 +66,7 @@
 # Additional Presets
 PRESET_CANCEL_HOLD = "cancel hold"
 PRESET_CANCEL_AWAY_MODE = "cancel away mode"
-PRESET_SCHEDULE_OVERRIDE = "Schedule Hold"
+PRESET_SCHEDULE_OVERRIDE = "schedule hold"
 # Basic set of support flags for every HVAC setup
 SUPPORT_FLAGS = ClimateEntityFeature.PRESET_MODE | ClimateEntityFeature.FAN_MODE
 # Standard set of fan modes
@@ -533,6 +533,7 @@ def preset_modes(self):
         presets.append(PRESET_AWAY)
         presets.append(PRESET_CANCEL_HOLD)
         presets.append(PRESET_CANCEL_AWAY_MODE)
+        presets.append(PRESET_SCHEDULE_OVERRIDE)
         presets.append(PRESET_NONE)
         if _LOGGER.isEnabledFor(logging.DEBUG):
             _LOGGER.debug("climate:preset_modes name[%s] presets[%s]", self._myname, presets)
@@ -542,6 +543,9 @@ async def async_set_preset_mode(self, preset_mode):
         _LOGGER.info("climate:async_set_preset_mode name [%s] preset_mode [%s]", self._myname, preset_mode)
         if self.is_zone_disabled:
             raise HomeAssistantError(f"Unable to set preset mode [{preset_mode}] as zone [{self._myname}] is disabled")
+
+        if preset_mode == PRESET_SCHEDULE_OVERRIDE:
+            raise HomeAssistantError(f"Setting preset to {PRESET_SCHEDULE_OVERRIDE} is not a valid operation.")
         try:
             if preset_mode == PRESET_CANCEL_AWAY_MODE:
                 processed = False
diff --git a/custom_components/lennoxs30/manifest.json b/custom_components/lennoxs30/manifest.json
index 604a116..5bf0203 100644
--- a/custom_components/lennoxs30/manifest.json
+++ b/custom_components/lennoxs30/manifest.json
@@ -9,5 +9,5 @@
   "issue_tracker" : "https://github.com/PeteRager/lennoxs30/issues",
   "quality_scale": "platinum",
   "requirements": ["lennoxs30api==0.2.15"],
-  "version": "2024.6.0"
+  "version": "2024.6.1"
 }
\ No newline at end of file
diff --git a/tests/test_climate.py b/tests/test_climate.py
index 4e228a1..791d3f9 100644
--- a/tests/test_climate.py
+++ b/tests/test_climate.py
@@ -565,6 +565,10 @@ async def test_climate_set_preset_mode(hass, manager_mz: Manager, caplog):
         await c.async_set_preset_mode(PRESET_NONE)
         assert zone_set_manual_mode.call_count == 1
 
+    with pytest.raises(HomeAssistantError) as hae:
+        await c.async_set_preset_mode(PRESET_SCHEDULE_OVERRIDE)    
+    assert PRESET_SCHEDULE_OVERRIDE in str(hae.value)
+
     system.manualAwayMode = False
     system.sa_enabled = False
     system.sa_state = LENNOX_SA_STATE_DISABLED
@@ -1169,12 +1173,13 @@ async def test_climate_preset_modes(hass, manager_mz: Manager):
     assert PRESET_CANCEL_HOLD in presets
     assert PRESET_CANCEL_AWAY_MODE in presets
     assert PRESET_NONE in presets
+    assert PRESET_SCHEDULE_OVERRIDE in presets
     assert "save energy" in presets
     assert "spring/fall" in presets
     assert "winter" in presets
     assert "summer" in presets
     assert "schedule IQ" in presets
-    assert len(presets) == 9
+    assert len(presets) == 10
 
     system.zoningMode = LENNOX_ZONING_MODE_CENTRAL
     presets = c.preset_modes