diff --git a/homeassistant/components/schluter/climate.py b/homeassistant/components/schluter/climate.py
index c8c0d76690d..5d747c8f345 100644
--- a/homeassistant/components/schluter/climate.py
+++ b/homeassistant/components/schluter/climate.py
@@ -81,6 +81,7 @@ class SchluterThermostat(CoordinatorEntity, ClimateEntity):
     _attr_hvac_modes = [HVACMode.HEAT]
     _attr_supported_features = ClimateEntityFeature.TARGET_TEMPERATURE
     _attr_temperature_unit = UnitOfTemperature.CELSIUS
+    _enable_turn_on_off_backwards_compatibility = False
 
     def __init__(self, coordinator, serial_number, api, session_id):
         """Initialize the thermostat."""