diff --git a/homeassistant/components/nexia/climate.py b/homeassistant/components/nexia/climate.py
index 66c325d2fc3..f8c08b4efd6 100644
--- a/homeassistant/components/nexia/climate.py
+++ b/homeassistant/components/nexia/climate.py
@@ -378,7 +378,7 @@ class NexiaZone(NexiaThermostatZoneEntity, ClimateEntity):
 
     async def async_turn_aux_heat_on(self) -> None:
         """Turn Aux Heat on."""
-        self._thermostat.set_emergency_heat(True)
+        await self._thermostat.set_emergency_heat(True)
         self._signal_thermostat_update()
 
     async def async_turn_off(self) -> None: