diff --git a/homeassistant/components/simplisafe/__init__.py b/homeassistant/components/simplisafe/__init__.py
index 3647c1bda57..a25f76bcbc8 100644
--- a/homeassistant/components/simplisafe/__init__.py
+++ b/homeassistant/components/simplisafe/__init__.py
@@ -102,9 +102,11 @@ ATTR_TIMESTAMP = "timestamp"
 
 DEFAULT_ENTITY_MODEL = "alarm_control_panel"
 DEFAULT_ENTITY_NAME = "Alarm Control Panel"
+DEFAULT_REST_API_ERROR_COUNT = 2
 DEFAULT_SCAN_INTERVAL = timedelta(seconds=30)
 DEFAULT_SOCKET_MIN_RETRY = 15
 
+
 DISPATCHER_TOPIC_WEBSOCKET_EVENT = "simplisafe_websocket_event_{0}"
 
 EVENT_SIMPLISAFE_EVENT = "SIMPLISAFE_EVENT"
@@ -553,6 +555,8 @@ class SimpliSafeEntity(CoordinatorEntity):
         assert simplisafe.coordinator
         super().__init__(simplisafe.coordinator)
 
+        self._rest_api_errors = 0
+
         if device:
             model = device.type.name
             device_name = device.name
@@ -615,11 +619,24 @@ class SimpliSafeEntity(CoordinatorEntity):
         else:
             system_offline = False
 
-        return super().available and self._online and not system_offline
+        return (
+            self._rest_api_errors < DEFAULT_REST_API_ERROR_COUNT
+            and self._online
+            and not system_offline
+        )
 
     @callback
     def _handle_coordinator_update(self) -> None:
         """Update the entity with new REST API data."""
+        # SimpliSafe can incorrectly return an error state when there isn't any
+        # error. This can lead to the system having an unknown state frequently.
+        # To protect against that, we measure how many "error states" we receive
+        # and only alter the state if we detect a few in a row:
+        if self.coordinator.last_update_success:
+            self._rest_api_errors = 0
+        else:
+            self._rest_api_errors += 1
+
         self.async_update_from_rest_api()
         self.async_write_ha_state()
 
diff --git a/homeassistant/components/simplisafe/alarm_control_panel.py b/homeassistant/components/simplisafe/alarm_control_panel.py
index 15887b91532..de571f1291d 100644
--- a/homeassistant/components/simplisafe/alarm_control_panel.py
+++ b/homeassistant/components/simplisafe/alarm_control_panel.py
@@ -71,8 +71,6 @@ ATTR_RF_JAMMING = "rf_jamming"
 ATTR_WALL_POWER_LEVEL = "wall_power_level"
 ATTR_WIFI_STRENGTH = "wifi_strength"
 
-DEFAULT_ERRORS_TO_ACCOMMODATE = 2
-
 VOLUME_STRING_MAP = {
     VOLUME_HIGH: "high",
     VOLUME_LOW: "low",
@@ -140,8 +138,6 @@ class SimpliSafeAlarm(SimpliSafeEntity, AlarmControlPanelEntity):
             additional_websocket_events=WEBSOCKET_EVENTS_TO_LISTEN_FOR,
         )
 
-        self._errors = 0
-
         if code := self._simplisafe.entry.options.get(CONF_CODE):
             if code.isdigit():
                 self._attr_code_format = FORMAT_NUMBER
@@ -248,19 +244,6 @@ class SimpliSafeAlarm(SimpliSafeEntity, AlarmControlPanelEntity):
                 }
             )
 
-        # SimpliSafe can incorrectly return an error state when there isn't any
-        # error. This can lead to the system having an unknown state frequently.
-        # To protect against that, we measure how many "error states" we receive
-        # and only alter the state if we detect a few in a row:
-        if self._system.state == SystemStates.error:
-            if self._errors > DEFAULT_ERRORS_TO_ACCOMMODATE:
-                self._attr_state = None
-            else:
-                self._errors += 1
-            return
-
-        self._errors = 0
-
         self._set_state_from_system_data()
 
     @callback