diff --git a/incomfortclient/__init__.py b/incomfortclient/__init__.py
index a5be243..70da414 100644
--- a/incomfortclient/__init__.py
+++ b/incomfortclient/__init__.py
@@ -202,7 +202,7 @@ async def heaters(self, force_refresh: bool = None) -> list[Heater]:
 
         try:
             heaters = dict(await self._get("heaterlist.json"))[HEATERLIST]
-        except aiohttp.ClientError as exc:
+        except (aiohttp.ClientError, UnicodeDecodeError) as exc:
             raise InvalidGateway(exc) from exc
 
         self._heaters = [