diff --git a/homeassistant/components/rainmachine/__init__.py b/homeassistant/components/rainmachine/__init__.py
index 52de2e1c61a..756dc9b958d 100644
--- a/homeassistant/components/rainmachine/__init__.py
+++ b/homeassistant/components/rainmachine/__init__.py
@@ -9,7 +9,7 @@ from typing import Any
 
 from regenmaschine import Client
 from regenmaschine.controller import Controller
-from regenmaschine.errors import RainMachineError
+from regenmaschine.errors import RainMachineError, UnknownAPICallError
 import voluptuous as vol
 
 from homeassistant.config_entries import ConfigEntry, ConfigEntryState
@@ -190,7 +190,9 @@ async def async_update_programs_and_zones(
     )
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+async def async_setup_entry(  # noqa: C901
+    hass: HomeAssistant, entry: ConfigEntry
+) -> bool:
     """Set up RainMachine as config entry."""
     websession = aiohttp_client.async_get_clientsession(hass)
     client = Client(session=websession)
@@ -244,6 +246,12 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
                 data = await controller.restrictions.universal()
             else:
                 data = await controller.zones.all(details=True, include_inactive=True)
+        except UnknownAPICallError:
+            LOGGER.info(
+                "Skipping unsupported API call for controller %s: %s",
+                controller.name,
+                api_category,
+            )
         except RainMachineError as err:
             raise UpdateFailed(err) from err
 
diff --git a/homeassistant/components/rainmachine/binary_sensor.py b/homeassistant/components/rainmachine/binary_sensor.py
index 3db64240788..48f11f598c9 100644
--- a/homeassistant/components/rainmachine/binary_sensor.py
+++ b/homeassistant/components/rainmachine/binary_sensor.py
@@ -175,7 +175,9 @@ class ProvisionSettingsBinarySensor(RainMachineEntity, BinarySensorEntity):
     def update_from_latest_data(self) -> None:
         """Update the state."""
         if self.entity_description.key == TYPE_FLOW_SENSOR:
-            self._attr_is_on = self.coordinator.data["system"].get("useFlowSensor")
+            self._attr_is_on = self.coordinator.data.get("system", {}).get(
+                "useFlowSensor"
+            )
 
 
 class UniversalRestrictionsBinarySensor(RainMachineEntity, BinarySensorEntity):
diff --git a/homeassistant/components/rainmachine/manifest.json b/homeassistant/components/rainmachine/manifest.json
index b183fc1b24f..a6cc86e5055 100644
--- a/homeassistant/components/rainmachine/manifest.json
+++ b/homeassistant/components/rainmachine/manifest.json
@@ -3,7 +3,7 @@
   "name": "RainMachine",
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/rainmachine",
-  "requirements": ["regenmaschine==2022.08.0"],
+  "requirements": ["regenmaschine==2022.09.0"],
   "codeowners": ["@bachya"],
   "iot_class": "local_polling",
   "homekit": {
diff --git a/homeassistant/components/rainmachine/sensor.py b/homeassistant/components/rainmachine/sensor.py
index e2e602b945b..32364e08199 100644
--- a/homeassistant/components/rainmachine/sensor.py
+++ b/homeassistant/components/rainmachine/sensor.py
@@ -273,12 +273,14 @@ class ProvisionSettingsSensor(RainMachineEntity, SensorEntity):
     def update_from_latest_data(self) -> None:
         """Update the state."""
         if self.entity_description.key == TYPE_FLOW_SENSOR_CLICK_M3:
-            self._attr_native_value = self.coordinator.data["system"].get(
+            self._attr_native_value = self.coordinator.data.get("system", {}).get(
                 "flowSensorClicksPerCubicMeter"
             )
         elif self.entity_description.key == TYPE_FLOW_SENSOR_CONSUMED_LITERS:
-            clicks = self.coordinator.data["system"].get("flowSensorWateringClicks")
-            clicks_per_m3 = self.coordinator.data["system"].get(
+            clicks = self.coordinator.data.get("system", {}).get(
+                "flowSensorWateringClicks"
+            )
+            clicks_per_m3 = self.coordinator.data.get("system", {}).get(
                 "flowSensorClicksPerCubicMeter"
             )
 
@@ -287,11 +289,11 @@ class ProvisionSettingsSensor(RainMachineEntity, SensorEntity):
             else:
                 self._attr_native_value = None
         elif self.entity_description.key == TYPE_FLOW_SENSOR_START_INDEX:
-            self._attr_native_value = self.coordinator.data["system"].get(
+            self._attr_native_value = self.coordinator.data.get("system", {}).get(
                 "flowSensorStartIndex"
             )
         elif self.entity_description.key == TYPE_FLOW_SENSOR_WATERING_CLICKS:
-            self._attr_native_value = self.coordinator.data["system"].get(
+            self._attr_native_value = self.coordinator.data.get("system", {}).get(
                 "flowSensorWateringClicks"
             )
 
diff --git a/requirements_all.txt b/requirements_all.txt
index 2947ea72798..3e8ebabbdcd 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2121,7 +2121,7 @@ raincloudy==0.0.7
 raspyrfm-client==1.2.8
 
 # homeassistant.components.rainmachine
-regenmaschine==2022.08.0
+regenmaschine==2022.09.0
 
 # homeassistant.components.renault
 renault-api==0.1.11
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index f08a496dc5c..d476445a4d6 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1454,7 +1454,7 @@ radios==0.1.1
 radiotherm==2.1.0
 
 # homeassistant.components.rainmachine
-regenmaschine==2022.08.0
+regenmaschine==2022.09.0
 
 # homeassistant.components.renault
 renault-api==0.1.11