From 29223d390832796524df1f9207a0265ff2fef871 Mon Sep 17 00:00:00 2001
From: Alex Fishlock <alex.fishlock@racingjag.com>
Date: Sun, 30 Aug 2026 18:44:05 +0100
Subject: [PATCH] Stop reporting max_volume in Lyngdorf diagnostics (#180828)

---
 homeassistant/components/lyngdorf/diagnostics.py          | 1 -
 tests/components/lyngdorf/conftest.py                     | 1 -
 tests/components/lyngdorf/snapshots/test_diagnostics.ambr | 1 -
 3 files changed, 3 deletions(-)

diff --git a/homeassistant/components/lyngdorf/diagnostics.py b/homeassistant/components/lyngdorf/diagnostics.py
index 0acb33de4875..45ac73a947bb 100644
--- a/homeassistant/components/lyngdorf/diagnostics.py
+++ b/homeassistant/components/lyngdorf/diagnostics.py
@@ -73,7 +73,6 @@ async def async_get_config_entry_diagnostics(
         "model": receiver.model.name,
         "power_on": receiver.power_on,
         "volume": volume.value if volume is not None else None,
-        "max_volume": receiver.max_volume,
         "mute_enabled": receiver.muted,
         "source": receiver.source,
         "available_sources": receiver.sources,
diff --git a/tests/components/lyngdorf/conftest.py b/tests/components/lyngdorf/conftest.py
index c8114dd077aa..5dbf74f2d27c 100644
--- a/tests/components/lyngdorf/conftest.py
+++ b/tests/components/lyngdorf/conftest.py
@@ -115,7 +115,6 @@ def mock_receiver(mock_create_receiver: MagicMock) -> MagicMock:
     # Diagnostics reports the whole receiver, so every property it reads
     # needs a value here; an unset one is a mock the response cannot encode.
     receiver.model = LyngdorfModel.MP_60
-    receiver.max_volume = 0.0
     receiver.room_perfect_position = "Focus 1"
     receiver.available_room_perfect_positions = ["Global", "Focus 1"]
     receiver.room_perfect_positions = ["Global", "Focus 1"]
diff --git a/tests/components/lyngdorf/snapshots/test_diagnostics.ambr b/tests/components/lyngdorf/snapshots/test_diagnostics.ambr
index ae8f67c0dfab..d5bf1a0ff5cc 100644
--- a/tests/components/lyngdorf/snapshots/test_diagnostics.ambr
+++ b/tests/components/lyngdorf/snapshots/test_diagnostics.ambr
@@ -90,7 +90,6 @@
       ]),
       'connected': True,
       'lipsync': 50.0,
-      'max_volume': 0.0,
       'model': 'MP_60',
       'mute_enabled': False,
       'power_on': False,