diff --git a/homeassistant/components/transmission/__init__.py b/homeassistant/components/transmission/__init__.py
index 32177e91160..a09fb6a7456 100644
--- a/homeassistant/components/transmission/__init__.py
+++ b/homeassistant/components/transmission/__init__.py
@@ -362,6 +362,8 @@ class TransmissionData:
 
     def start_torrents(self):
         """Start all torrents."""
+        if len(self.torrents) <= 0:
+            return
         self._api.start_all()
 
     def stop_torrents(self):