diff --git a/homeassistant/components/bsblan/climate.py b/homeassistant/components/bsblan/climate.py
index cbc6dd00471..47afdf1539b 100644
--- a/homeassistant/components/bsblan/climate.py
+++ b/homeassistant/components/bsblan/climate.py
@@ -23,6 +23,7 @@ from homeassistant.helpers.update_coordinator import (
     CoordinatorEntity,
     DataUpdateCoordinator,
 )
+from homeassistant.util.enum import try_parse_enum
 
 from . import HomeAssistantBSBLANData
 from .const import ATTR_TARGET_TEMPERATURE, DOMAIN, LOGGER
@@ -112,12 +113,11 @@ class BSBLANClimate(
         return float(self.coordinator.data.target_temperature.value)
 
     @property
-    def hvac_mode(self) -> str:
+    def hvac_mode(self) -> HVACMode | None:
         """Return hvac operation ie. heat, cool mode."""
         if self.coordinator.data.hvac_mode.value == PRESET_ECO:
             return HVACMode.AUTO
-
-        return self.coordinator.data.hvac_mode.value
+        return try_parse_enum(HVACMode, self.coordinator.data.hvac_mode.value)
 
     @property
     def preset_mode(self) -> str | None: