diff --git a/homeassistant/components/solaredge/config_flow.py b/homeassistant/components/solaredge/config_flow.py
index 8a7f2af3a99..49c265b4221 100644
--- a/homeassistant/components/solaredge/config_flow.py
+++ b/homeassistant/components/solaredge/config_flow.py
@@ -41,15 +41,14 @@ class SolarEdgeConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
         api = solaredge.Solaredge(api_key)
         try:
             response = api.get_details(site_id)
-        except (ConnectTimeout, HTTPError):
-            self._errors[CONF_SITE_ID] = "could_not_connect"
-            return False
-        try:
             if response["details"]["status"].lower() != "active":
                 self._errors[CONF_SITE_ID] = "site_not_active"
                 return False
+        except (ConnectTimeout, HTTPError):
+            self._errors[CONF_SITE_ID] = "could_not_connect"
+            return False
         except KeyError:
-            self._errors[CONF_SITE_ID] = "api_failure"
+            self._errors[CONF_SITE_ID] = "invalid_api_key"
             return False
         return True
 
@@ -59,7 +58,7 @@ class SolarEdgeConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
         if user_input is not None:
             name = slugify(user_input.get(CONF_NAME, DEFAULT_NAME))
             if self._site_in_configuration_exists(user_input[CONF_SITE_ID]):
-                self._errors[CONF_SITE_ID] = "site_exists"
+                self._errors[CONF_SITE_ID] = "already_configured"
             else:
                 site = user_input[CONF_SITE_ID]
                 api = user_input[CONF_API_KEY]
@@ -94,5 +93,5 @@ class SolarEdgeConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
     async def async_step_import(self, user_input=None):
         """Import a config entry."""
         if self._site_in_configuration_exists(user_input[CONF_SITE_ID]):
-            return self.async_abort(reason="site_exists")
+            return self.async_abort(reason="already_configured")
         return await self.async_step_user(user_input)
diff --git a/homeassistant/components/solaredge/strings.json b/homeassistant/components/solaredge/strings.json
index eb4c5cda1fd..b6f258b0dc8 100644
--- a/homeassistant/components/solaredge/strings.json
+++ b/homeassistant/components/solaredge/strings.json
@@ -11,10 +11,13 @@
       }
     },
     "error": {
-      "site_exists": "This site_id is already configured"
+      "already_configured": "[%key:common::config_flow::abort::already_configured_device%]",
+      "invalid_api_key": "[%key:common::config_flow::error::invalid_api_key%]",
+      "site_not_active": "The site is not active",
+      "could_not_connect": "Could not connect to the solaredge API"
     },
     "abort": {
-      "site_exists": "This site_id is already configured"
+      "already_configured": "[%key:common::config_flow::abort::already_configured_device%]"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/tests/components/solaredge/test_config_flow.py b/tests/components/solaredge/test_config_flow.py
index 61bc5f9ac6c..835fc300982 100644
--- a/tests/components/solaredge/test_config_flow.py
+++ b/tests/components/solaredge/test_config_flow.py
@@ -85,14 +85,14 @@ async def test_abort_if_already_setup(hass, test_api):
         {CONF_NAME: DEFAULT_NAME, CONF_SITE_ID: SITE_ID, CONF_API_KEY: API_KEY}
     )
     assert result["type"] == data_entry_flow.RESULT_TYPE_ABORT
-    assert result["reason"] == "site_exists"
+    assert result["reason"] == "already_configured"
 
     # user: Should fail, same SITE_ID
     result = await flow.async_step_user(
         {CONF_NAME: "test", CONF_SITE_ID: SITE_ID, CONF_API_KEY: "test"}
     )
     assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
-    assert result["errors"] == {CONF_SITE_ID: "site_exists"}
+    assert result["errors"] == {CONF_SITE_ID: "already_configured"}
 
 
 async def test_asserts(hass, test_api):
@@ -113,7 +113,7 @@ async def test_asserts(hass, test_api):
         {CONF_NAME: NAME, CONF_API_KEY: API_KEY, CONF_SITE_ID: SITE_ID}
     )
     assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
-    assert result["errors"] == {CONF_SITE_ID: "api_failure"}
+    assert result["errors"] == {CONF_SITE_ID: "invalid_api_key"}
 
     # test with ConnectionTimeout
     test_api.get_details.side_effect = ConnectTimeout()