diff --git a/wideq/washer.py b/wideq/washer.py
index 26b40a0..c880e85 100644
--- a/wideq/washer.py
+++ b/wideq/washer.py
@@ -48,9 +48,10 @@ class WasherDevice(Device):
         # Abort if monitoring has not started yet.
         if not hasattr(self, 'mon'):
             return None
-
-        res = self.mon.poll_json()
-        if res:
+        
+        data = self.mon.poll()
+        if data:
+            res = self.model.decode_monitor(data)
             return WasherStatus(self, res)
         else:
             return None