diff --git a/.coveragerc b/.coveragerc
index e25f664efe80c..fd4f87da85847 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -36,6 +36,9 @@ omit =
     homeassistant/components/agent_dvr/helpers.py
     homeassistant/components/airnow/__init__.py
     homeassistant/components/airnow/sensor.py
+    homeassistant/components/airtouch4/__init__.py
+    homeassistant/components/airtouch4/climate.py
+    homeassistant/components/airtouch4/const.py
     homeassistant/components/airvisual/__init__.py
     homeassistant/components/airvisual/sensor.py
     homeassistant/components/aladdin_connect/*
diff --git a/CODEOWNERS b/CODEOWNERS
index c6696c485fedf..1dedb1d421b58 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -29,6 +29,7 @@ homeassistant/components/aemet/* @noltari
 homeassistant/components/agent_dvr/* @ispysoftware
 homeassistant/components/airly/* @bieniu
 homeassistant/components/airnow/* @asymworks
+homeassistant/components/airtouch4/* @LonePurpleWolf
 homeassistant/components/airvisual/* @bachya
 homeassistant/components/alarmdecoder/* @ajschmidt8
 homeassistant/components/alexa/* @home-assistant/cloud @ochlocracy
diff --git a/homeassistant/components/airtouch4/__init__.py b/homeassistant/components/airtouch4/__init__.py
new file mode 100644
index 0000000000000..0ec63161ea340
--- /dev/null
+++ b/homeassistant/components/airtouch4/__init__.py
@@ -0,0 +1,81 @@
+"""The AirTouch4 integration."""
+import logging
+
+from airtouch4pyapi import AirTouch
+from airtouch4pyapi.airtouch import AirTouchStatus
+
+from homeassistant.components.climate import SCAN_INTERVAL
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import CONF_HOST
+from homeassistant.core import HomeAssistant
+from homeassistant.exceptions import ConfigEntryNotReady
+from homeassistant.helpers.update_coordinator import DataUpdateCoordinator, UpdateFailed
+
+from .const import DOMAIN
+
+_LOGGER = logging.getLogger(__name__)
+
+PLATFORMS = ["climate"]
+
+
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Set up AirTouch4 from a config entry."""
+    hass.data.setdefault(DOMAIN, {})
+    host = entry.data[CONF_HOST]
+    airtouch = AirTouch(host)
+    await airtouch.UpdateInfo()
+    info = airtouch.GetAcs()
+    if not info:
+        raise ConfigEntryNotReady
+    coordinator = AirtouchDataUpdateCoordinator(hass, airtouch)
+    await coordinator.async_config_entry_first_refresh()
+    hass.data[DOMAIN][entry.entry_id] = coordinator
+
+    hass.config_entries.async_setup_platforms(entry, PLATFORMS)
+
+    return True
+
+
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    """Unload a config entry."""
+    unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
+
+    if unload_ok:
+        hass.data[DOMAIN].pop(entry.entry_id)
+
+    return unload_ok
+
+
+class AirtouchDataUpdateCoordinator(DataUpdateCoordinator):
+    """Class to manage fetching Airtouch data."""
+
+    def __init__(self, hass, airtouch):
+        """Initialize global Airtouch data updater."""
+        self.airtouch = airtouch
+
+        super().__init__(
+            hass,
+            _LOGGER,
+            name=DOMAIN,
+            update_interval=SCAN_INTERVAL,
+        )
+
+    async def _async_update_data(self):
+        """Fetch data from Airtouch."""
+        await self.airtouch.UpdateInfo()
+        if self.airtouch.Status != AirTouchStatus.OK:
+            raise UpdateFailed("Airtouch connection issue")
+        return {
+            "acs": [
+                {"ac_number": ac.AcNumber, "is_on": ac.IsOn}
+                for ac in self.airtouch.GetAcs()
+            ],
+            "groups": [
+                {
+                    "group_number": group.GroupNumber,
+                    "group_name": group.GroupName,
+                    "is_on": group.IsOn,
+                }
+                for group in self.airtouch.GetGroups()
+            ],
+        }
diff --git a/homeassistant/components/airtouch4/climate.py b/homeassistant/components/airtouch4/climate.py
new file mode 100644
index 0000000000000..7202feb052796
--- /dev/null
+++ b/homeassistant/components/airtouch4/climate.py
@@ -0,0 +1,335 @@
+"""AirTouch 4 component to control of AirTouch 4 Climate Devices."""
+
+import logging
+
+from homeassistant.components.climate import ClimateEntity
+from homeassistant.components.climate.const import (
+    FAN_AUTO,
+    FAN_DIFFUSE,
+    FAN_FOCUS,
+    FAN_HIGH,
+    FAN_LOW,
+    FAN_MEDIUM,
+    HVAC_MODE_AUTO,
+    HVAC_MODE_COOL,
+    HVAC_MODE_DRY,
+    HVAC_MODE_FAN_ONLY,
+    HVAC_MODE_HEAT,
+    HVAC_MODE_OFF,
+    SUPPORT_FAN_MODE,
+    SUPPORT_TARGET_TEMPERATURE,
+)
+from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS
+from homeassistant.core import callback
+from homeassistant.helpers.update_coordinator import CoordinatorEntity
+
+from .const import DOMAIN
+
+SUPPORT_FLAGS = SUPPORT_TARGET_TEMPERATURE | SUPPORT_FAN_MODE
+AT_TO_HA_STATE = {
+    "Heat": HVAC_MODE_HEAT,
+    "Cool": HVAC_MODE_COOL,
+    "AutoHeat": HVAC_MODE_AUTO,  # airtouch reports either autoheat or autocool
+    "AutoCool": HVAC_MODE_AUTO,
+    "Auto": HVAC_MODE_AUTO,
+    "Dry": HVAC_MODE_DRY,
+    "Fan": HVAC_MODE_FAN_ONLY,
+}
+
+HA_STATE_TO_AT = {
+    HVAC_MODE_HEAT: "Heat",
+    HVAC_MODE_COOL: "Cool",
+    HVAC_MODE_AUTO: "Auto",
+    HVAC_MODE_DRY: "Dry",
+    HVAC_MODE_FAN_ONLY: "Fan",
+    HVAC_MODE_OFF: "Off",
+}
+
+AT_TO_HA_FAN_SPEED = {
+    "Quiet": FAN_DIFFUSE,
+    "Low": FAN_LOW,
+    "Medium": FAN_MEDIUM,
+    "High": FAN_HIGH,
+    "Powerful": FAN_FOCUS,
+    "Auto": FAN_AUTO,
+    "Turbo": "turbo",
+}
+
+AT_GROUP_MODES = [HVAC_MODE_OFF, HVAC_MODE_FAN_ONLY]
+
+HA_FAN_SPEED_TO_AT = {value: key for key, value in AT_TO_HA_FAN_SPEED.items()}
+
+_LOGGER = logging.getLogger(__name__)
+
+
+async def async_setup_entry(hass, config_entry, async_add_entities):
+    """Set up the Airtouch 4."""
+    coordinator = hass.data[DOMAIN][config_entry.entry_id]
+    info = coordinator.data
+    entities = [
+        AirtouchGroup(coordinator, group["group_number"], info)
+        for group in info["groups"]
+    ] + [AirtouchAC(coordinator, ac["ac_number"], info) for ac in info["acs"]]
+
+    _LOGGER.debug(" Found entities %s", entities)
+
+    async_add_entities(entities)
+
+
+class AirtouchAC(CoordinatorEntity, ClimateEntity):
+    """Representation of an AirTouch 4 ac."""
+
+    _attr_supported_features = SUPPORT_TARGET_TEMPERATURE | SUPPORT_FAN_MODE
+    _attr_temperature_unit = TEMP_CELSIUS
+
+    def __init__(self, coordinator, ac_number, info):
+        """Initialize the climate device."""
+        super().__init__(coordinator)
+        self._ac_number = ac_number
+        self._airtouch = coordinator.airtouch
+        self._info = info
+        self._unit = self._airtouch.GetAcs()[self._ac_number]
+
+    @callback
+    def _handle_coordinator_update(self):
+        self._unit = self._airtouch.GetAcs()[self._ac_number]
+        return super()._handle_coordinator_update()
+
+    @property
+    def device_info(self):
+        """Return device info for this device."""
+        return {
+            "identifiers": {(DOMAIN, self.unique_id)},
+            "name": self.name,
+            "manufacturer": "Airtouch",
+            "model": "Airtouch 4",
+        }
+
+    @property
+    def unique_id(self):
+        """Return unique ID for this device."""
+        return f"ac_{self._ac_number}"
+
+    @property
+    def current_temperature(self):
+        """Return the current temperature."""
+        return self._unit.Temperature
+
+    @property
+    def name(self):
+        """Return the name of the climate device."""
+        return f"AC {self._ac_number}"
+
+    @property
+    def fan_mode(self):
+        """Return fan mode of the AC this group belongs to."""
+        return AT_TO_HA_FAN_SPEED[self._airtouch.acs[self._ac_number].AcFanSpeed]
+
+    @property
+    def fan_modes(self):
+        """Return the list of available fan modes."""
+        airtouch_fan_speeds = self._airtouch.GetSupportedFanSpeedsForAc(self._ac_number)
+        return [AT_TO_HA_FAN_SPEED[speed] for speed in airtouch_fan_speeds]
+
+    @property
+    def hvac_mode(self):
+        """Return hvac target hvac state."""
+        is_off = self._unit.PowerState == "Off"
+        if is_off:
+            return HVAC_MODE_OFF
+
+        return AT_TO_HA_STATE[self._airtouch.acs[self._ac_number].AcMode]
+
+    @property
+    def hvac_modes(self):
+        """Return the list of available operation modes."""
+        airtouch_modes = self._airtouch.GetSupportedCoolingModesForAc(self._ac_number)
+        modes = [AT_TO_HA_STATE[mode] for mode in airtouch_modes]
+        modes.append(HVAC_MODE_OFF)
+        return modes
+
+    async def async_set_hvac_mode(self, hvac_mode):
+        """Set new operation mode."""
+        if hvac_mode not in HA_STATE_TO_AT:
+            raise ValueError(f"Unsupported HVAC mode: {hvac_mode}")
+
+        if hvac_mode == HVAC_MODE_OFF:
+            return await self.async_turn_off()
+        await self._airtouch.SetCoolingModeForAc(
+            self._ac_number, HA_STATE_TO_AT[hvac_mode]
+        )
+        # in case it isn't already, unless the HVAC mode was off, then the ac should be on
+        await self.async_turn_on()
+        self._unit = self._airtouch.GetAcs()[self._ac_number]
+        _LOGGER.debug("Setting operation mode of %s to %s", self._ac_number, hvac_mode)
+        self.async_write_ha_state()
+
+    async def async_set_fan_mode(self, fan_mode):
+        """Set new fan mode."""
+        if fan_mode not in self.fan_modes:
+            raise ValueError(f"Unsupported fan mode: {fan_mode}")
+
+        _LOGGER.debug("Setting fan mode of %s to %s", self._ac_number, fan_mode)
+        await self._airtouch.SetFanSpeedForAc(
+            self._ac_number, HA_FAN_SPEED_TO_AT[fan_mode]
+        )
+        self._unit = self._airtouch.GetAcs()[self._ac_number]
+        self.async_write_ha_state()
+
+    async def async_turn_on(self):
+        """Turn on."""
+        _LOGGER.debug("Turning %s on", self.unique_id)
+        # in case ac is not on. Airtouch turns itself off if no groups are turned on
+        # (even if groups turned back on)
+        await self._airtouch.TurnAcOn(self._ac_number)
+
+    async def async_turn_off(self):
+        """Turn off."""
+        _LOGGER.debug("Turning %s off", self.unique_id)
+        await self._airtouch.TurnAcOff(self._ac_number)
+        self.async_write_ha_state()
+
+
+class AirtouchGroup(CoordinatorEntity, ClimateEntity):
+    """Representation of an AirTouch 4 group."""
+
+    _attr_supported_features = SUPPORT_TARGET_TEMPERATURE
+    _attr_temperature_unit = TEMP_CELSIUS
+    _attr_hvac_modes = AT_GROUP_MODES
+
+    def __init__(self, coordinator, group_number, info):
+        """Initialize the climate device."""
+        super().__init__(coordinator)
+        self._group_number = group_number
+        self._airtouch = coordinator.airtouch
+        self._info = info
+        self._unit = self._airtouch.GetGroupByGroupNumber(self._group_number)
+
+    @callback
+    def _handle_coordinator_update(self):
+        self._unit = self._airtouch.GetGroupByGroupNumber(self._group_number)
+        return super()._handle_coordinator_update()
+
+    @property
+    def device_info(self):
+        """Return device info for this device."""
+        return {
+            "identifiers": {(DOMAIN, self.unique_id)},
+            "name": self.name,
+            "manufacturer": "Airtouch",
+            "model": "Airtouch 4",
+        }
+
+    @property
+    def unique_id(self):
+        """Return unique ID for this device."""
+        return self._group_number
+
+    @property
+    def min_temp(self):
+        """Return Minimum Temperature for AC of this group."""
+        return self._airtouch.acs[self._unit.BelongsToAc].MinSetpoint
+
+    @property
+    def max_temp(self):
+        """Return Max Temperature for AC of this group."""
+        return self._airtouch.acs[self._unit.BelongsToAc].MaxSetpoint
+
+    @property
+    def name(self):
+        """Return the name of the climate device."""
+        return self._unit.GroupName
+
+    @property
+    def current_temperature(self):
+        """Return the current temperature."""
+        return self._unit.Temperature
+
+    @property
+    def target_temperature(self):
+        """Return the temperature we are trying to reach."""
+        return self._unit.TargetSetpoint
+
+    @property
+    def hvac_mode(self):
+        """Return hvac target hvac state."""
+        # there are other power states that aren't 'on' but still count as on (eg. 'Turbo')
+        is_off = self._unit.PowerState == "Off"
+        if is_off:
+            return HVAC_MODE_OFF
+
+        return HVAC_MODE_FAN_ONLY
+
+    async def async_set_hvac_mode(self, hvac_mode):
+        """Set new operation mode."""
+        if hvac_mode not in HA_STATE_TO_AT:
+            raise ValueError(f"Unsupported HVAC mode: {hvac_mode}")
+
+        if hvac_mode == HVAC_MODE_OFF:
+            return await self.async_turn_off()
+        if self.hvac_mode == HVAC_MODE_OFF:
+            await self.async_turn_on()
+        self._unit = self._airtouch.GetGroups()[self._group_number]
+        _LOGGER.debug(
+            "Setting operation mode of %s to %s", self._group_number, hvac_mode
+        )
+        self.async_write_ha_state()
+
+    @property
+    def fan_mode(self):
+        """Return fan mode of the AC this group belongs to."""
+        return AT_TO_HA_FAN_SPEED[self._airtouch.acs[self._unit.BelongsToAc].AcFanSpeed]
+
+    @property
+    def fan_modes(self):
+        """Return the list of available fan modes."""
+        airtouch_fan_speeds = self._airtouch.GetSupportedFanSpeedsByGroup(
+            self._group_number
+        )
+        return [AT_TO_HA_FAN_SPEED[speed] for speed in airtouch_fan_speeds]
+
+    async def async_set_temperature(self, **kwargs):
+        """Set new target temperatures."""
+        temp = kwargs.get(ATTR_TEMPERATURE)
+
+        _LOGGER.debug("Setting temp of %s to %s", self._group_number, str(temp))
+        self._unit = await self._airtouch.SetGroupToTemperature(
+            self._group_number, int(temp)
+        )
+        self.async_write_ha_state()
+
+    async def async_set_fan_mode(self, fan_mode):
+        """Set new fan mode."""
+        if fan_mode not in self.fan_modes:
+            raise ValueError(f"Unsupported fan mode: {fan_mode}")
+
+        _LOGGER.debug("Setting fan mode of %s to %s", self._group_number, fan_mode)
+        self._unit = await self._airtouch.SetFanSpeedByGroup(
+            self._group_number, HA_FAN_SPEED_TO_AT[fan_mode]
+        )
+        self.async_write_ha_state()
+
+    async def async_turn_on(self):
+        """Turn on."""
+        _LOGGER.debug("Turning %s on", self.unique_id)
+        await self._airtouch.TurnGroupOn(self._group_number)
+
+        # in case ac is not on. Airtouch turns itself off if no groups are turned on
+        # (even if groups turned back on)
+        await self._airtouch.TurnAcOn(
+            self._airtouch.GetGroupByGroupNumber(self._group_number).BelongsToAc
+        )
+        # this might cause the ac object to be wrong, so force the shared data
+        # store to update
+        await self.coordinator.async_request_refresh()
+        self.async_write_ha_state()
+
+    async def async_turn_off(self):
+        """Turn off."""
+        _LOGGER.debug("Turning %s off", self.unique_id)
+        await self._airtouch.TurnGroupOff(self._group_number)
+        # this will cause the ac object to be wrong
+        # (ac turns off automatically if no groups are running)
+        # so force the shared data store to update
+        await self.coordinator.async_request_refresh()
+        self.async_write_ha_state()
diff --git a/homeassistant/components/airtouch4/config_flow.py b/homeassistant/components/airtouch4/config_flow.py
new file mode 100644
index 0000000000000..e395c71349b47
--- /dev/null
+++ b/homeassistant/components/airtouch4/config_flow.py
@@ -0,0 +1,50 @@
+"""Config flow for AirTouch4."""
+from airtouch4pyapi import AirTouch, AirTouchStatus
+import voluptuous as vol
+
+from homeassistant import config_entries
+from homeassistant.const import CONF_HOST
+
+from .const import DOMAIN
+
+DATA_SCHEMA = vol.Schema({vol.Required(CONF_HOST): str})
+
+
+class AirtouchConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
+    """Handle an Airtouch config flow."""
+
+    VERSION = 1
+
+    async def async_step_user(self, user_input=None):
+        """Handle a flow initialized by the user."""
+        if user_input is None:
+            return self.async_show_form(step_id="user", data_schema=DATA_SCHEMA)
+
+        errors = {}
+
+        host = user_input[CONF_HOST]
+        self._async_abort_entries_match({CONF_HOST: host})
+
+        airtouch = AirTouch(host)
+        await airtouch.UpdateInfo()
+        airtouch_status = airtouch.Status
+        airtouch_has_groups = bool(
+            airtouch.Status == AirTouchStatus.OK and airtouch.GetGroups()
+        )
+
+        if airtouch_status != AirTouchStatus.OK:
+            errors["base"] = "cannot_connect"
+        elif not airtouch_has_groups:
+            errors["base"] = "no_units"
+
+        if errors:
+            return self.async_show_form(
+                step_id="user", data_schema=DATA_SCHEMA, errors=errors
+            )
+
+        return self.async_create_entry(
+            title=user_input[CONF_HOST],
+            data={
+                CONF_HOST: user_input[CONF_HOST],
+            },
+        )
diff --git a/homeassistant/components/airtouch4/const.py b/homeassistant/components/airtouch4/const.py
new file mode 100644
index 0000000000000..e110a6cee8115
--- /dev/null
+++ b/homeassistant/components/airtouch4/const.py
@@ -0,0 +1,3 @@
+"""Constants for the AirTouch4 integration."""
+
+DOMAIN = "airtouch4"
diff --git a/homeassistant/components/airtouch4/manifest.json b/homeassistant/components/airtouch4/manifest.json
new file mode 100644
index 0000000000000..8297081ae9dff
--- /dev/null
+++ b/homeassistant/components/airtouch4/manifest.json
@@ -0,0 +1,13 @@
+{
+  "domain": "airtouch4",
+  "name": "AirTouch 4",
+  "config_flow": true,
+  "documentation": "https://www.home-assistant.io/integrations/airtouch4",
+  "requirements": [
+    "airtouch4pyapi==1.0.5"
+  ],
+  "codeowners": [
+    "@LonePurpleWolf"
+  ],
+  "iot_class": "local_polling"
+}
\ No newline at end of file
diff --git a/homeassistant/components/airtouch4/strings.json b/homeassistant/components/airtouch4/strings.json
new file mode 100644
index 0000000000000..5259b20fb7356
--- /dev/null
+++ b/homeassistant/components/airtouch4/strings.json
@@ -0,0 +1,19 @@
+{
+  "config": {
+    "abort": {
+      "already_configured": "[%key:common::config_flow::abort::already_configured_device%]"
+    },
+    "error": {
+      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
+      "no_units": "Could not find any AirTouch 4 Groups."
+    },
+    "step": {
+      "user": {
+        "title": "Setup your AirTouch 4 connection details.",
+        "data": {
+          "host": "[%key:common::config_flow::data::host%]"
+        }
+      }
+    }
+  }
+}
diff --git a/homeassistant/components/airtouch4/translations/en.json b/homeassistant/components/airtouch4/translations/en.json
new file mode 100644
index 0000000000000..2bde2ea760a32
--- /dev/null
+++ b/homeassistant/components/airtouch4/translations/en.json
@@ -0,0 +1,17 @@
+{
+    "config": {
+
+      "error": {
+        "cannot_connect": "Failed to connect",
+        "no_units": "Could not find any AirTouch 4 Groups."
+      },
+      "step": {
+        "user": {
+          "title": "Setup your AirTouch 4.",
+          "data": {
+            "host": "Host"
+          }
+        }
+      }
+    }
+  }
diff --git a/homeassistant/generated/config_flows.py b/homeassistant/generated/config_flows.py
index b4a6fcc3775e9..6be4f70b38e06 100644
--- a/homeassistant/generated/config_flows.py
+++ b/homeassistant/generated/config_flows.py
@@ -16,6 +16,7 @@
     "agent_dvr",
     "airly",
     "airnow",
+    "airtouch4",
     "airvisual",
     "alarmdecoder",
     "almond",
diff --git a/requirements_all.txt b/requirements_all.txt
index 1f0e4e1b66558..5a535b86c13aa 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -257,6 +257,9 @@ aioymaps==1.1.0
 # homeassistant.components.airly
 airly==1.1.0
 
+# homeassistant.components.airtouch4
+airtouch4pyapi==1.0.5
+
 # homeassistant.components.aladdin_connect
 aladdin_connect==0.3
 
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 8ab3042137d67..16591436f25c8 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -178,6 +178,9 @@ aioymaps==1.1.0
 # homeassistant.components.airly
 airly==1.1.0
 
+# homeassistant.components.airtouch4
+airtouch4pyapi==1.0.5
+
 # homeassistant.components.ambee
 ambee==0.3.0
 
diff --git a/tests/components/airtouch4/__init__.py b/tests/components/airtouch4/__init__.py
new file mode 100644
index 0000000000000..cc267ee41d1eb
--- /dev/null
+++ b/tests/components/airtouch4/__init__.py
@@ -0,0 +1 @@
+"""Tests for the AirTouch4 integration."""
diff --git a/tests/components/airtouch4/test_config_flow.py b/tests/components/airtouch4/test_config_flow.py
new file mode 100644
index 0000000000000..a98b24ef88db1
--- /dev/null
+++ b/tests/components/airtouch4/test_config_flow.py
@@ -0,0 +1,123 @@
+"""Test the AirTouch 4 config flow."""
+from unittest.mock import AsyncMock, Mock, patch
+
+from airtouch4pyapi.airtouch import AirTouch, AirTouchAc, AirTouchGroup, AirTouchStatus
+
+from homeassistant import config_entries
+from homeassistant.components.airtouch4.const import DOMAIN
+
+
+async def test_form(hass):
+    """Test we get the form."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+    assert result["type"] == "form"
+    assert result["errors"] is None
+    mock_ac = AirTouchAc()
+    mock_groups = AirTouchGroup()
+    mock_airtouch = AirTouch("")
+    mock_airtouch.UpdateInfo = AsyncMock()
+    mock_airtouch.Status = AirTouchStatus.OK
+    mock_airtouch.GetAcs = Mock(return_value=[mock_ac])
+    mock_airtouch.GetGroups = Mock(return_value=[mock_groups])
+
+    with patch(
+        "homeassistant.components.airtouch4.config_flow.AirTouch",
+        return_value=mock_airtouch,
+    ), patch(
+        "homeassistant.components.airtouch4.async_setup_entry",
+        return_value=True,
+    ) as mock_setup_entry:
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"], {"host": "0.0.0.1"}
+        )
+        await hass.async_block_till_done()
+
+    assert result2["type"] == "create_entry"
+    assert result2["title"] == "0.0.0.1"
+    assert result2["data"] == {
+        "host": "0.0.0.1",
+    }
+    assert len(mock_setup_entry.mock_calls) == 1
+
+
+async def test_form_timeout(hass):
+    """Test we handle a connection timeout."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+    mock_airtouch = AirTouch("")
+    mock_airtouch.UpdateInfo = AsyncMock()
+    mock_airtouch.status = AirTouchStatus.CONNECTION_INTERRUPTED
+    with patch(
+        "homeassistant.components.airtouch4.config_flow.AirTouch",
+        return_value=mock_airtouch,
+    ):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"], {"host": "0.0.0.1"}
+        )
+        assert result2["type"] == "form"
+        assert result2["errors"] == {"base": "cannot_connect"}
+
+
+async def test_form_library_error_message(hass):
+    """Test we handle an unknown error message from the library."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+    mock_airtouch = AirTouch("")
+    mock_airtouch.UpdateInfo = AsyncMock()
+    mock_airtouch.status = AirTouchStatus.ERROR
+    with patch(
+        "homeassistant.components.airtouch4.config_flow.AirTouch",
+        return_value=mock_airtouch,
+    ):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"], {"host": "0.0.0.1"}
+        )
+        assert result2["type"] == "form"
+        assert result2["errors"] == {"base": "cannot_connect"}
+
+
+async def test_form_connection_refused(hass):
+    """Test we handle a connection error."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+    mock_airtouch = AirTouch("")
+    mock_airtouch.UpdateInfo = AsyncMock()
+    mock_airtouch.status = AirTouchStatus.NOT_CONNECTED
+    with patch(
+        "homeassistant.components.airtouch4.config_flow.AirTouch",
+        return_value=mock_airtouch,
+    ):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"], {"host": "0.0.0.1"}
+        )
+        assert result2["type"] == "form"
+        assert result2["errors"] == {"base": "cannot_connect"}
+
+
+async def test_form_no_units(hass):
+    """Test we handle no units found."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+    mock_ac = AirTouchAc()
+    mock_airtouch = AirTouch("")
+    mock_airtouch.UpdateInfo = AsyncMock()
+    mock_airtouch.Status = AirTouchStatus.OK
+    mock_airtouch.GetAcs = Mock(return_value=[mock_ac])
+    mock_airtouch.GetGroups = Mock(return_value=[])
+
+    with patch(
+        "homeassistant.components.airtouch4.config_flow.AirTouch",
+        return_value=mock_airtouch,
+    ):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"], {"host": "0.0.0.1"}
+        )
+
+        assert result2["type"] == "form"
+        assert result2["errors"] == {"base": "no_units"}