diff --git a/components/daikin_rotex_can/__init__.py b/components/daikin_rotex_can/__init__.py
index bdde64f..8a3b6e8 100644
--- a/components/daikin_rotex_can/__init__.py
+++ b/components/daikin_rotex_can/__init__.py
@@ -289,6 +289,7 @@
         "data_offset": 5,
         "data_size": 2,
         "divider": 10.0,
+        "signed": True,
         "range": [-30, 90]
     },
     {