diff --git a/eufy_robovac/property.py b/eufy_robovac/property.py
index 26aff04..e13bd69 100644
--- a/eufy_robovac/property.py
+++ b/eufy_robovac/property.py
@@ -30,9 +30,9 @@ class DeviceProperty:
         self.type_cast = type_cast
         self.read_only = read_only
 
-    def __get__(self, instance):
+    def __get__(self, instance, owner):
         value = instance.state.get(self.key)
-        if value is not None and type_cast is not None:
+        if value is not None and self.type_cast is not None:
             value = self.type_cast(value)
         return value
 
diff --git a/eufy_robovac/robovac.py b/eufy_robovac/robovac.py
index 7a16306..59f0503 100644
--- a/eufy_robovac/robovac.py
+++ b/eufy_robovac/robovac.py
@@ -101,7 +101,7 @@ class Robovac(TuyaDevice):
         await self.async_set({self.GO_HOME: True}, callback)
 
     async def async_set_work_mode(self, work_mode, callback=None):
-        await self.async_set({self.WORK_MODE: work_mode}, callback)
+        await self.async_set({self.WORK_MODE: str(work_mode)}, callback)
 
     async def async_find_robot(self, callback=None):
         await self.async_set({self.FIND_ROBOT: True}, callback)
diff --git a/eufy_robovac/tuya.py b/eufy_robovac/tuya.py
index 327c4e2..af7db9f 100644
--- a/eufy_robovac/tuya.py
+++ b/eufy_robovac/tuya.py
@@ -413,14 +413,6 @@ def _call_async(fn, *args):
     loop.call_soon(wrapper, fn, *args)
 
 
-def async_connection_needed(fn):
-    def wrapper(self, *args, **kwargs):
-        await self.async_connect()
-        return await fn(*args, **kwargs)
-
-    return wrapper
-
-
 class TuyaDevice:
     """Represents a generic Tuya device."""
 
@@ -465,6 +457,8 @@ class TuyaDevice:
         return "{} ({}:{})".format(self.device_id, self.host, self.port)
 
     async def async_connect(self, callback=None):
+        if self._connected:
+            return
         sock = socket.socket(family=socket.AF_INET, type=socket.SOCK_STREAM)
         sock.settimeout(self.timeout)
         _LOGGER.debug("Connecting to {}".format(self))
@@ -555,8 +549,8 @@ class TuyaDevice:
 
         asyncio.ensure_future(self._async_handle_message())
 
-    @async_connection_needed
     async def _async_send(self, message, retries=4):
+        await self.async_connect()
         _LOGGER.debug("Sending to {}: {}".format(self, message))
         try:
             self.writer.write(message.bytes())
diff --git a/eufy_robovac/vacuum.py b/eufy_robovac/vacuum.py
index a2f772f..9de082e 100644
--- a/eufy_robovac/vacuum.py
+++ b/eufy_robovac/vacuum.py
@@ -115,8 +115,6 @@ class EufyVacuum(VacuumDevice):
         """Return the status of the vacuum cleaner."""
         if self.robovac.error_code != robovac.ErrorCode.NO_ERROR:
             return STATE_ERROR
-        elif self.robovac.work_status == robovac.WorkStatus.RECHARGE:
-            return STATE_ERROR
         elif self.robovac.go_home:
             return STATE_RETURNING
         elif self.robovac.work_status == robovac.WorkStatus.RUNNING:
@@ -133,7 +131,7 @@ class EufyVacuum(VacuumDevice):
     @property
     def available(self) -> bool:
         """Return True if entity is available."""
-        return self._available
+        return True
 
     async def async_return_to_base(self, **kwargs):
         """Set the vacuum cleaner to return to the dock."""
@@ -160,6 +158,10 @@ class EufyVacuum(VacuumDevice):
         """Turn the vacuum off and return to home."""
         await self.async_return_to_base()
 
+    async def async_start(self, **kwargs):
+        """Resume the cleaning cycle."""
+        await self.async_turn_on()
+
     async def async_resume(self, **kwargs):
         """Resume the cleaning cycle."""
         await self.robovac.async_play()