diff --git a/src/yamaha2mqtt/app.py b/src/yamaha2mqtt/app.py
index ce0a387..95e7879 100644
--- a/src/yamaha2mqtt/app.py
+++ b/src/yamaha2mqtt/app.py
@@ -53,7 +53,7 @@ class Yamaha:
         except json.decoder.JSONDecodeError:
             raise ApiInvalidResponseError()
 
-        if r_json['response_code'] != 0:
+        if r_json['response_code'] != 0 and r_json['response_code'] != 5:
             raise ApiError(r.url, r_json['response_code'])
         return r_json
 
@@ -99,6 +99,8 @@ class Yamaha:
             self.request(Zone().set_volume('main', param, ''))
 
         r = self.request(Zone().get_status('main'))
+        if r['response_code'] != 0:
+            return
 
         self._client.publish('yamaha/stat/volume', r['volume'])
         self._client.publish('yamaha/stat/volume/max', r['max_volume'])
@@ -113,6 +115,8 @@ class Yamaha:
             self.request(Zone().set_power('main', 'standby'))
 
         r = self.request(Zone().get_status('main'))
+        if r['response_code'] != 0:
+            return
         state = r['power']
         state = 'off' if state == 'standby' else state
         self._client.publish('yamaha/stat/power', state)