diff --git a/homeassistant/components/advantage_air/climate.py b/homeassistant/components/advantage_air/climate.py
index cda123f62ee..a4e0a1033ba 100644
--- a/homeassistant/components/advantage_air/climate.py
+++ b/homeassistant/components/advantage_air/climate.py
@@ -127,7 +127,7 @@ class AdvantageAirAC(AdvantageAirAcEntity, ClimateEntity):
         """Return the current target temperature."""
         # If the system is in MyZone mode, and a zone is set, return that temperature instead.
         if (
-            self._ac["myZone"] > 0
+            self._myzone
             and not self._ac.get(ADVANTAGE_AIR_MYAUTO_ENABLED)
             and not self._ac.get(ADVANTAGE_AIR_MYTEMP_ENABLED)
         ):
diff --git a/homeassistant/components/advantage_air/entity.py b/homeassistant/components/advantage_air/entity.py
index b300a677793..691db99769b 100644
--- a/homeassistant/components/advantage_air/entity.py
+++ b/homeassistant/components/advantage_air/entity.py
@@ -63,7 +63,7 @@ class AdvantageAirAcEntity(AdvantageAirEntity):
         return self.coordinator.data["aircons"][self.ac_key]["info"]
 
     @property
-    def _myzone(self) -> dict[str, Any]:
+    def _myzone(self) -> dict[str, Any] | None:
         return self.coordinator.data["aircons"][self.ac_key]["zones"].get(
             f"z{self._ac['myZone']:02}"
         )