diff --git a/homeassistant/components/rainmachine/__init__.py b/homeassistant/components/rainmachine/__init__.py
index f5875558a53..ed46f50ec3b 100644
--- a/homeassistant/components/rainmachine/__init__.py
+++ b/homeassistant/components/rainmachine/__init__.py
@@ -1,4 +1,5 @@
 """Support for RainMachine devices."""
+import asyncio
 import logging
 from datetime import timedelta
 from functools import wraps
@@ -20,7 +21,8 @@ from homeassistant.helpers.event import async_track_time_interval
 
 from .config_flow import configured_instances
 from .const import (
-    DATA_CLIENT, DEFAULT_PORT, DEFAULT_SCAN_INTERVAL, DEFAULT_SSL, DOMAIN)
+    DATA_CLIENT, DEFAULT_PORT, DEFAULT_SCAN_INTERVAL, DEFAULT_SSL, DOMAIN,
+    OPERATION_RESTRICTIONS_CURRENT, OPERATION_RESTRICTIONS_UNIVERSAL)
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -346,17 +348,30 @@ class RainMachine:
         """Initialize."""
         self.binary_sensor_conditions = binary_sensor_conditions
         self.client = client
+        self.data = {}
         self.default_zone_runtime = default_zone_runtime
         self.device_mac = self.client.mac
-        self.restrictions = {}
         self.sensor_conditions = sensor_conditions
 
     async def async_update(self):
         """Update sensor/binary sensor data."""
-        self.restrictions.update({
-            'current': await self.client.restrictions.current(),
-            'global': await self.client.restrictions.universal()
-        })
+        from regenmaschine.errors import RainMachineError
+
+        tasks = {
+            OPERATION_RESTRICTIONS_CURRENT: self.client.restrictions.current(),
+            OPERATION_RESTRICTIONS_UNIVERSAL:
+                self.client.restrictions.universal(),
+        }
+
+        results = await asyncio.gather(*tasks.values(), return_exceptions=True)
+        for operation, result in zip(tasks, results):
+            if isinstance(result, RainMachineError):
+                _LOGGER.error(
+                    'There was an error while updating %s: %s', operation,
+                    result)
+                continue
+
+            self.data[operation] = result
 
 
 class RainMachineEntity(Entity):
diff --git a/homeassistant/components/rainmachine/binary_sensor.py b/homeassistant/components/rainmachine/binary_sensor.py
index fcccf11e17c..57dbcb551ed 100644
--- a/homeassistant/components/rainmachine/binary_sensor.py
+++ b/homeassistant/components/rainmachine/binary_sensor.py
@@ -7,6 +7,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from . import (
     BINARY_SENSORS, DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN,
+    OPERATION_RESTRICTIONS_CURRENT, OPERATION_RESTRICTIONS_UNIVERSAL,
     SENSOR_UPDATE_TOPIC, TYPE_FREEZE, TYPE_FREEZE_PROTECTION, TYPE_HOT_DAYS,
     TYPE_HOURLY, TYPE_MONTH, TYPE_RAINDELAY, TYPE_RAINSENSOR, TYPE_WEEKDAY,
     RainMachineEntity)
@@ -79,21 +80,26 @@ class RainMachineBinarySensor(RainMachineEntity, BinarySensorDevice):
     async def async_update(self):
         """Update the state."""
         if self._sensor_type == TYPE_FREEZE:
-            self._state = self.rainmachine.restrictions['current']['freeze']
+            self._state = self.rainmachine.data[
+                OPERATION_RESTRICTIONS_CURRENT]['freeze']
         elif self._sensor_type == TYPE_FREEZE_PROTECTION:
-            self._state = self.rainmachine.restrictions['global'][
-                'freezeProtectEnabled']
+            self._state = self.rainmachine.data[
+                OPERATION_RESTRICTIONS_UNIVERSAL]['freezeProtectEnabled']
         elif self._sensor_type == TYPE_HOT_DAYS:
-            self._state = self.rainmachine.restrictions['global'][
-                'hotDaysExtraWatering']
+            self._state = self.rainmachine.data[
+                OPERATION_RESTRICTIONS_UNIVERSAL]['hotDaysExtraWatering']
         elif self._sensor_type == TYPE_HOURLY:
-            self._state = self.rainmachine.restrictions['current']['hourly']
+            self._state = self.rainmachine.data[
+                OPERATION_RESTRICTIONS_CURRENT]['hourly']
         elif self._sensor_type == TYPE_MONTH:
-            self._state = self.rainmachine.restrictions['current']['month']
+            self._state = self.rainmachine.data[
+                OPERATION_RESTRICTIONS_CURRENT]['month']
         elif self._sensor_type == TYPE_RAINDELAY:
-            self._state = self.rainmachine.restrictions['current']['rainDelay']
+            self._state = self.rainmachine.data[
+                OPERATION_RESTRICTIONS_CURRENT]['rainDelay']
         elif self._sensor_type == TYPE_RAINSENSOR:
-            self._state = self.rainmachine.restrictions['current'][
-                'rainSensor']
+            self._state = self.rainmachine.data[
+                OPERATION_RESTRICTIONS_CURRENT]['rainSensor']
         elif self._sensor_type == TYPE_WEEKDAY:
-            self._state = self.rainmachine.restrictions['current']['weekDay']
+            self._state = self.rainmachine.data[
+                OPERATION_RESTRICTIONS_CURRENT]['weekDay']
diff --git a/homeassistant/components/rainmachine/const.py b/homeassistant/components/rainmachine/const.py
index 4d08a871f61..d142467443f 100644
--- a/homeassistant/components/rainmachine/const.py
+++ b/homeassistant/components/rainmachine/const.py
@@ -12,4 +12,7 @@ DEFAULT_PORT = 8080
 DEFAULT_SCAN_INTERVAL = timedelta(seconds=60)
 DEFAULT_SSL = True
 
+OPERATION_RESTRICTIONS_CURRENT = 'restrictions.current'
+OPERATION_RESTRICTIONS_UNIVERSAL = 'restrictions.universal'
+
 TOPIC_UPDATE = 'update_{0}'
diff --git a/homeassistant/components/rainmachine/sensor.py b/homeassistant/components/rainmachine/sensor.py
index 08dd67755bb..4894bd2ce39 100644
--- a/homeassistant/components/rainmachine/sensor.py
+++ b/homeassistant/components/rainmachine/sensor.py
@@ -5,7 +5,8 @@ from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from . import (
-    DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN, SENSOR_UPDATE_TOPIC, SENSORS,
+    DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN,
+    OPERATION_RESTRICTIONS_UNIVERSAL, SENSOR_UPDATE_TOPIC, SENSORS,
     RainMachineEntity)
 
 _LOGGER = logging.getLogger(__name__)
@@ -81,5 +82,5 @@ class RainMachineSensor(RainMachineEntity):
 
     async def async_update(self):
         """Update the sensor's state."""
-        self._state = self.rainmachine.restrictions['global'][
+        self._state = self.rainmachine.data[OPERATION_RESTRICTIONS_UNIVERSAL][
             'freezeProtectTemp']