diff --git a/homeassistant/__main__.py b/homeassistant/__main__.py
index 8f12028b437..c2802e1b9c4 100644
--- a/homeassistant/__main__.py
+++ b/homeassistant/__main__.py
@@ -2,6 +2,7 @@
 from __future__ import annotations
 
 import argparse
+import faulthandler
 import os
 import platform
 import subprocess
@@ -10,6 +11,8 @@ import threading
 
 from homeassistant.const import REQUIRED_PYTHON_VER, RESTART_EXIT_CODE, __version__
 
+FAULT_LOG_FILENAME = "home-assistant.log.fault"
+
 
 def validate_python() -> None:
     """Validate that the right Python version is running."""
@@ -309,7 +312,15 @@ def main() -> int:
         open_ui=args.open_ui,
     )
 
-    exit_code = runner.run(runtime_conf)
+    fault_file_name = os.path.join(config_dir, FAULT_LOG_FILENAME)
+    with open(fault_file_name, mode="a", encoding="utf8") as fault_file:
+        faulthandler.enable(fault_file)
+        exit_code = runner.run(runtime_conf)
+        faulthandler.disable()
+
+    if os.path.getsize(fault_file_name) == 0:
+        os.remove(fault_file_name)
+
     if exit_code == RESTART_EXIT_CODE and not args.runner:
         try_to_restart()