diff --git a/homeassistant/components/xs1/climate.py b/homeassistant/components/xs1/climate.py
index 4c4f6682ffa..949d2330347 100644
--- a/homeassistant/components/xs1/climate.py
+++ b/homeassistant/components/xs1/climate.py
@@ -54,6 +54,7 @@ class XS1ThermostatEntity(XS1DeviceEntity, ClimateEntity):
     _attr_hvac_mode = HVACMode.HEAT
     _attr_hvac_modes = [HVACMode.HEAT]
     _attr_supported_features = ClimateEntityFeature.TARGET_TEMPERATURE
+    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, device, sensor):
         """Initialize the actuator."""