diff --git a/homeassistant/components/sensibo/climate.py b/homeassistant/components/sensibo/climate.py
index f8ecd1b9b80..40aa54e5d56 100644
--- a/homeassistant/components/sensibo/climate.py
+++ b/homeassistant/components/sensibo/climate.py
@@ -57,6 +57,7 @@ BOOST_INCLUSIVE = "boost_inclusive"
 AVAILABLE_FAN_MODES = {
     "quiet",
     "low",
+    "medium_low",
     "medium",
     "medium_high",
     "high",
diff --git a/homeassistant/components/sensibo/strings.json b/homeassistant/components/sensibo/strings.json
index ddd164225fc..9af6139b789 100644
--- a/homeassistant/components/sensibo/strings.json
+++ b/homeassistant/components/sensibo/strings.json
@@ -125,6 +125,7 @@
               "auto": "[%key:component::climate::entity_component::_::state_attributes::fan_mode::state::auto%]",
               "high": "[%key:component::climate::entity_component::_::state_attributes::fan_mode::state::high%]",
               "low": "[%key:component::climate::entity_component::_::state_attributes::fan_mode::state::low%]",
+              "medium_low": "Medium low",
               "medium": "[%key:component::climate::entity_component::_::state_attributes::fan_mode::state::medium%]",
               "medium_high": "Medium high",
               "strong": "Strong",
@@ -210,6 +211,7 @@
               "auto": "[%key:component::climate::entity_component::_::state_attributes::fan_mode::state::auto%]",
               "high": "[%key:component::climate::entity_component::_::state_attributes::fan_mode::state::high%]",
               "low": "[%key:component::climate::entity_component::_::state_attributes::fan_mode::state::low%]",
+              "medium_low": "[%key:component::sensibo::entity::sensor::climate_react_low::state_attributes::fanlevel::state::medium_low%]",
               "medium": "[%key:component::climate::entity_component::_::state_attributes::fan_mode::state::medium%]",
               "medium_high": "[%key:component::sensibo::entity::sensor::climate_react_low::state_attributes::fanlevel::state::medium_high%]",
               "strong": "[%key:component::sensibo::entity::sensor::climate_react_low::state_attributes::fanlevel::state::strong%]",
@@ -351,6 +353,7 @@
               "quiet": "Quiet",
               "strong": "Strong",
               "low": "[%key:component::climate::entity_component::_::state_attributes::fan_mode::state::low%]",
+              "medium_low": "Medium low",
               "medium": "[%key:component::climate::entity_component::_::state_attributes::fan_mode::state::medium%]",
               "medium_high": "Medium high",
               "high": "[%key:component::climate::entity_component::_::state_attributes::fan_mode::state::high%]",