diff --git a/homeassistant/components/netatmo/climate.py b/homeassistant/components/netatmo/climate.py
index acfcf4306fb..c23f8f47bef 100644
--- a/homeassistant/components/netatmo/climate.py
+++ b/homeassistant/components/netatmo/climate.py
@@ -261,8 +261,11 @@ class NetatmoThermostat(NetatmoBase, ClimateEntity):
         for room in home["rooms"]:
             if data["event_type"] == EVENT_TYPE_SET_POINT:
                 if self._id == room["id"]:
-                    if room["therm_setpoint_mode"] == "off":
+                    if room["therm_setpoint_mode"] == STATE_NETATMO_OFF:
                         self._hvac_mode = HVAC_MODE_OFF
+                    elif room["therm_setpoint_mode"] == STATE_NETATMO_MAX:
+                        self._hvac_mode = HVAC_MODE_HEAT
+                        self._target_temperature = DEFAULT_MAX_TEMP
                     else:
                         self._target_temperature = room["therm_setpoint_temperature"]
                     self.async_write_ha_state()