diff --git a/pydanfossally/danfossallyapi.py b/pydanfossally/danfossallyapi.py
index 5205571..108a2e4 100644
--- a/pydanfossally/danfossallyapi.py
+++ b/pydanfossally/danfossallyapi.py
@@ -8,6 +8,13 @@
 
 import requests
 
+from .exceptions import (
+    InternalServerError,
+    NotFoundError,
+    UnauthorizedError,
+    UnexpectedError,
+)
+
 API_HOST = "https://api.danfoss.com"
 
 _LOGGER = logging.getLogger(__name__)
@@ -38,16 +45,20 @@ def _call(
             else:
                 req = requests.get(API_HOST + path, headers=headers_data, timeout=10)
 
-            if not req.ok:
-                return False
-        except TimeoutError:
-            _LOGGER.warning("Timeout communication with Danfoss Ally API")
+            req.raise_for_status()
+        except requests.exceptions.HTTPError as err:
+            code = err.response.status_code
+            if code == 401:
+                raise UnauthorizedError
+            if code == 404:
+                raise NotFoundError
+            if code == 500:
+                raise InternalServerError
             return False
+        except TimeoutError:
+            raise TimeoutError
         except:
-            _LOGGER.warning(
-                "Unexpected error occured in communications with Danfoss Ally API!"
-            )
-            return False
+            raise UnexpectedError
 
         json = req.json()
         print("JSON: ", json)
diff --git a/pydanfossally/exceptions.py b/pydanfossally/exceptions.py
new file mode 100644
index 0000000..0d1a245
--- /dev/null
+++ b/pydanfossally/exceptions.py
@@ -0,0 +1,19 @@
+"""Exceptions for Danfoss Ally."""
+
+from http.client import HTTPException
+
+
+class NotFoundError(HTTPException):
+    ...
+
+
+class InternalServerError(HTTPException):
+    ...
+
+
+class UnauthorizedError(HTTPException):
+    ...
+
+
+class UnexpectedError(Exception):
+    ...