diff --git a/README.md b/README.md
index c62d7290..09b577b0 100644
--- a/README.md
+++ b/README.md
@@ -65,6 +65,7 @@ Elatko devices are exemplarily mentioned. You can find [here](https://www.eltako
   * A5-38-08 (light and switch)
   * H5-3F-7F (cover)
 * [Send Message Service](https://github.com/grimmpp/home-assistant-eltako/tree/main/docs/service-send-message/readme.md) Sends any EnOcean Message. Can be used for [automatinos in Home Assistant](https://www.home-assistant.io/getting-started/automation/) so that none-EnOcean and EnOcean deviecs can be combined. 
+  * Not supported EEPs: A5-09-0C (Air Quality), A5-38-08 (Central Command)
  
 [**Gateway**](https://github.com/grimmpp/home-assistant-eltako/tree/main/docs/gateways/readme.md) (See also [how to use gateways](https://github.com/grimmpp/home-assistant-eltako/tree/main/docs/gateway_usage/readme.md) and [multiple gateway support](https://github.com/grimmpp/home-assistant-eltako/tree/main/docs/multiple-gateway-support/readme.md))
   * **Eltako FAM14** and Eltako **FGW14-USB** (based on ESP2, rs485 bus and baud rate 57600, uses library [eltako14bus](https://github.com/grimmpp/eltako14bus)) 
diff --git a/changes.md b/changes.md
index 8f5dee90..ca3f2fc3 100644
--- a/changes.md
+++ b/changes.md
@@ -7,6 +7,7 @@
 * Unit-Tests added and improved for EEP A5-04-01, A5-04-02, A5-10-06, A5-10-12, A5-13-01, and F6-10-00.
 * EEP A5-04-03 added for Eltako FFT60 (temperature and humiditry)
 * EEP A5-06-01 added for light sensor (currently twilight and daylight are combinded in one illumination sensor/entity)
+* Bug fixes in EEPs (in [eltako14bus library](https://github.com/grimmpp/eltako14bus))
 
 ## Version 1.4.0 ESP3 Support (USB300)
 * Docs about gateway usage added.
diff --git a/custom_components/eltako/config_helpers.py b/custom_components/eltako/config_helpers.py
index 9a57ccc4..6abad980 100644
--- a/custom_components/eltako/config_helpers.py
+++ b/custom_components/eltako/config_helpers.py
@@ -123,7 +123,7 @@ def get_device_config(config: dict, id: int) -> dict:
             return g[CONF_DEVICES]
     return None
 
-async def async_get_list_of_gateway_descriptions(hass: HomeAssistant, CONFIG_SCHEMA: dict, get_integration_config=async_integration_yaml_config, filter_out: [str]=[]) -> dict:
+async def async_get_list_of_gateway_descriptions(hass: HomeAssistant, CONFIG_SCHEMA: dict, get_integration_config=async_integration_yaml_config, filter_out: list[str]=[]) -> dict:
     config = await async_get_home_assistant_config(hass, CONFIG_SCHEMA, get_integration_config)
     return get_list_of_gateway_descriptions(config, filter_out)
 
diff --git a/custom_components/eltako/gateway.py b/custom_components/eltako/gateway.py
index fab554a7..be1c2133 100644
--- a/custom_components/eltako/gateway.py
+++ b/custom_components/eltako/gateway.py
@@ -216,7 +216,7 @@ async def async_setup(self):
 
 
     # Command Section
-    async def async_service_send_message(self, event) -> None:
+    async def async_service_send_message(self, event, raise_exception=False) -> None:
         """Send an arbitrary message with the provided eep."""
         LOGGER.debug(f"[Service Send Message: {event.service}] Received event data: {event.data}")
         
@@ -252,10 +252,11 @@ async def async_service_send_message(self, event) -> None:
             msg = eep.encode_message(sender_id[0])
             LOGGER.debug(f"[Service Send Message: {event.service}] Generated message: {msg} Serialized: {msg.serialize().hex()}")
             # send message
-            event_id = config_helpers.get_bus_event_type(self.base_id, SIGNAL_SEND_MESSAGE)
-            dispatcher_send(self.hass, event_id, msg)
-        except:
+            self.send_message(msg)
+        except Exception as e:
             LOGGER.error(f"[Service Send Message: {event.service}] Cannot send message.", exc_info=True, stack_info=True)
+            if raise_exception:
+                raise e
 
 
 
diff --git a/custom_components/eltako/manifest.json b/custom_components/eltako/manifest.json
index b147b1b0..aca7540f 100644
--- a/custom_components/eltako/manifest.json
+++ b/custom_components/eltako/manifest.json
@@ -9,6 +9,6 @@
   "iot_class": "local_push",
   "issue_tracker": "https://github.com/grimmpp/home-assistant-eltako/issues",
   "loggers": ["eltako"],
-  "requirements": ["eltako14bus==0.0.48","enocean==0.60.1", "StrEnum", "esp2-gateway-adapter==0.1"],
+  "requirements": ["eltako14bus==0.0.49","enocean==0.60.1", "StrEnum", "esp2-gateway-adapter==0.1"],
   "version": "1.4.1" 
 }
diff --git a/docs/service-send-message/eep-params.md b/docs/service-send-message/eep-params.md
new file mode 100644
index 00000000..85babf46
--- /dev/null
+++ b/docs/service-send-message/eep-params.md
@@ -0,0 +1,28 @@
+# Paramters for EEPs in Send Message Events
+## Not Supported EEPs 
+* A5-09-0C
+* A5-38-08
+
+## Parameters for events: 
+* A5-04-01: humidity, learn_button, temp_availability, temperature
+* A5-04-02: humidity, learn_button, temperature
+* A5-04-03: humidity, learn_button, telegram_type, temperature
+* A5-06-01: day_light, illumination, twilight
+* A5-07-01: learn_button, pir_status, pir_status_on, support_volrage_availability, support_voltage
+* A5-08-01: illumination, learn_button, occupancy_button, pir_status, supply_voltage, temperature
+* A5-10-06: current_temp, mode, stand_by, target_temp
+* A5-10-12: current_temperature, humidity, target_temperature
+* A5-12-01: data_type, divisor, learn_button, measurement_channel, meter_reading
+* A5-12-02: data_type, divisor, learn_button, measurement_channel, meter_reading
+* A5-12-03: data_type, divisor, learn_button, measurement_channel, meter_reading
+* A5-13-01: dawn_sensor, day_night, hemisphere, identifier, learn_button, rain_indication, sun_east, sun_south, sun_west, temperature, wind_speed
+* D5-00-01: contact, learn_button
+* F6-02-01: energy_bow, rocker_first_action, rocker_second_action, second_action
+* F6-02-02: energy_bow, rocker_first_action, rocker_second_action, second_action
+* F6-10-00: handle_position, movement
+* G5-3F-7F: direction, state, time
+* H5-3F-7F: command, learn_button, time
+* M5-38-08: state
+
+## References:
+Implementation of EEPs can be found [eltako14bus library](https://github.com/grimmpp/eltako14bus/blob/master/eltakobus/eep.py).
diff --git a/docs/service-send-message/readme.md b/docs/service-send-message/readme.md
index 109f47cb..e12a3560 100644
--- a/docs/service-send-message/readme.md
+++ b/docs/service-send-message/readme.md
@@ -8,7 +8,7 @@ This service is mainly inteded to combine none-EnOcean and EnOcean devices. Serv
 
 Create an [automation](https://www.home-assistant.io/getting-started/automation/) in Home Assistant. Use the upper sections to react on anything you like, dependent on you sensor/sender. 
 
-`Add Action` and search for `eltako`. It proposes a service to send messages for every available gateway. In addition you need to enter in the data section what to send. The fields `id` and `eep` must be specified. `id` stands for the sender address. (Keep in mind: bus gateways do not send in wireless network and wireless tranceivers do only have 128 hardcoded addresses to be used.) `eep` is the message format you what to use. Dependent on the eep specific information is put into the messages to be sent. You can either check in the [code](https://github.com/grimmpp/eltako14bus/blob/master/eltakobus/eep.py) or in the logs what attribute need to be set. 
+`Add Action` and search for `eltako`. It proposes a service to send messages for every available gateway. In addition you need to enter in the data section what to send. The fields `id` and `eep` must be specified. `id` stands for the sender address. (Keep in mind: bus gateways do not send in wireless network and wireless tranceivers do only have 128 hardcoded addresses to be used.) `eep` is the message format you what to use. Dependent on the eep specific information is put into the messages to be sent. You can either check in the [code](https://github.com/grimmpp/eltako14bus/blob/master/eltakobus/eep.py) or in this automatically generated [parameter list for EEPs](eep-params.md). In the logs you can see what parameters has been transferred and which will be set as default to 0.
 
 <img src="send_message_logs_screenshot.png" />
 
diff --git a/tests/mocks.py b/tests/mocks.py
index ba5d02a8..834f7894 100644
--- a/tests/mocks.py
+++ b/tests/mocks.py
@@ -26,6 +26,7 @@ class HassMock():
         
     def __init__(self) -> None:
         self.bus = BusMock()
+        self.loop = asyncio.get_event_loop()
 
     # def async_create_task(self, async_call):
     #     asyncio.run( async_call )
@@ -43,6 +44,10 @@ def __init__(self):
     def is_active(self):
         return self._is_active
 
+class EventMock():
+    def __init__(self, service:str, data:dict) -> None:
+        self.service = service
+        self.data = data
 class GatewayMock(EnOceanGateway):
 
     def __init__(self, general_settings:dict=DEFAULT_GENERAL_SETTINGS, dev_id: int=123, base_id:AddressExpression=AddressExpression.parse('FF-AA-80-00')):
diff --git a/tests/test_cover_G5_3F_7F.py b/tests/test_cover_G5_3F_7F.py
index 4b217595..74b09bd9 100644
--- a/tests/test_cover_G5_3F_7F.py
+++ b/tests/test_cover_G5_3F_7F.py
@@ -114,7 +114,7 @@ def test_open_cover(self):
         ec.open_cover()
         self.assertEqual(
             self.last_sent_command.body,
-            b'k\x07\x00\x04\x01\x08\x00\x00\xb1\x06\x00')
+            b'k\x07\x00\x0b\x01\x08\x00\x00\xb1\x06\x00')
         
     def test_close_cover(self):
         ec = self.create_cover()
@@ -122,7 +122,7 @@ def test_close_cover(self):
         ec.close_cover()
         self.assertEqual(
             self.last_sent_command.body,
-            b'k\x07\x00\x04\x02\x08\x00\x00\xb1\x06\x00')
+            b'k\x07\x00\x0b\x02\x08\x00\x00\xb1\x06\x00')
         
     def test_stop_cover(self):
         ec = self.create_cover()
@@ -139,7 +139,7 @@ def test_set_cover_position(self):
         ec.set_cover_position(position=50)
         self.assertEqual(
             self.last_sent_command.body,
-            b'k\x07\x00\x01\x02\x08\x00\x00\xb1\x06\x00')
+            b'k\x07\x00\x05\x02\x08\x00\x00\xb1\x06\x00')
         self.assertEqual(ec._attr_is_closing, True)
         self.assertEqual(ec._attr_is_opening, False)
         self.last_sent_command = None
@@ -148,7 +148,7 @@ def test_set_cover_position(self):
         ec.set_cover_position(position=50)
         self.assertEqual(
             self.last_sent_command.body,
-            b'k\x07\x00\x01\x01\x08\x00\x00\xb1\x06\x00')
+            b'k\x07\x00\x05\x01\x08\x00\x00\xb1\x06\x00')
         self.assertEqual(ec._attr_is_closing, False)
         self.assertEqual(ec._attr_is_opening, True)
         self.last_sent_command = None
@@ -157,7 +157,7 @@ def test_set_cover_position(self):
         ec.set_cover_position(position=0)
         self.assertEqual(
             self.last_sent_command.body,
-            b'k\x07\x00\x04\x02\x08\x00\x00\xb1\x06\x00')
+            b'k\x07\x00\x0b\x02\x08\x00\x00\xb1\x06\x00')
         self.assertEqual(ec._attr_is_closing, True)
         self.assertEqual(ec._attr_is_opening, False)
         self.last_sent_command = None
@@ -166,7 +166,7 @@ def test_set_cover_position(self):
         ec.set_cover_position(position=100)
         self.assertEqual(
             self.last_sent_command.body,
-            b'k\x07\x00\x04\x01\x08\x00\x00\xb1\x06\x00')
+            b'k\x07\x00\x0b\x01\x08\x00\x00\xb1\x06\x00')
         self.assertEqual(ec._attr_is_closing, False)
         self.assertEqual(ec._attr_is_opening, True)
         self.last_sent_command = None
diff --git a/tests/test_send_message_service.py b/tests/test_send_message_service.py
new file mode 100644
index 00000000..122b8916
--- /dev/null
+++ b/tests/test_send_message_service.py
@@ -0,0 +1,77 @@
+import unittest
+from mocks import *
+from unittest import mock
+from homeassistant.helpers import dispatcher
+import inspect
+
+dispatcher.dispatcher_send = mock.Mock(return_value=None)
+
+class TestSendMessageService(unittest.IsolatedAsyncioTestCase):
+
+    def create_gateway(self):
+        gateway = GatewayMock(dev_id=123)
+
+        return gateway
+    
+    def get_all_eep_names(self):
+        subclasses = set()
+        work = [EEP]
+        while work:
+            parent = work.pop()
+            for child in parent.__subclasses__():
+                if child not in subclasses:
+                    subclasses.add(child)
+                    work.append(child)
+        return sorted(set([s.__name__.upper().replace('_','-') for s in subclasses if len(s.__name__) == 8 and s.__name__.count('_') == 2]))
+
+    NOT_SUPPORTED_EEPS = ['A5-09-0C', 'A5-38-08']
+
+    async def test_send_message(self):
+        g = self.create_gateway()
+        # Mock send_message
+        g.send_message = lambda *args: None
+
+        for eep_name in self.get_all_eep_names():
+
+            if eep_name in self.NOT_SUPPORTED_EEPS:
+                continue
+
+            event = EventMock('service_name', {
+                'id': 'FF-DD-CC-BB',
+                'eep': eep_name,
+                'command': 1,
+                'identifier': 1
+            })
+
+            await g.async_service_send_message(event, True)
+
+
+    async def test_write_eep_params_to_docs_file(self):
+        text  = '# Paramters for EEPs in Send Message Events'
+        text += '\n'
+
+        text += "## Not Supported EEPs \n"
+        for eep_name in self.NOT_SUPPORTED_EEPS:
+            text += f"* {eep_name}\n"
+        text += '\n'
+
+        text += '## Parameters for events: \n'
+
+        for eep_name in self.get_all_eep_names():
+
+            if eep_name in self.NOT_SUPPORTED_EEPS:
+                continue
+    
+            sig = inspect.signature(EEP.find(eep_name).__init__)
+            eep_init_args = sorted([param.name for param in sig.parameters.values() if param.kind == param.POSITIONAL_OR_KEYWORD and param.name != 'self'])
+            text += f"* {eep_name}: {', '.join(eep_init_args)}\n"
+
+        text += '\n'
+        text += '## References:\n'
+        text += 'Implementation of EEPs can be found [eltako14bus library](https://github.com/grimmpp/eltako14bus/blob/master/eltakobus/eep.py).\n'
+
+        file='./docs/service-send-message/eep-params.md' 
+        with open(file, 'w') as filetowrite:
+            filetowrite.write(text)
+
+