diff --git a/.coveragerc b/.coveragerc
index 5fa34f27656..de48567eb6c 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -1453,6 +1453,7 @@ omit =
     homeassistant/components/yale_smart_alarm/binary_sensor.py
     homeassistant/components/yale_smart_alarm/const.py
     homeassistant/components/yale_smart_alarm/coordinator.py
+    homeassistant/components/yale_smart_alarm/diagnostics.py
     homeassistant/components/yale_smart_alarm/entity.py
     homeassistant/components/yale_smart_alarm/lock.py
     homeassistant/components/yamaha_musiccast/__init__.py
diff --git a/homeassistant/components/yale_smart_alarm/diagnostics.py b/homeassistant/components/yale_smart_alarm/diagnostics.py
new file mode 100644
index 00000000000..896a3240a22
--- /dev/null
+++ b/homeassistant/components/yale_smart_alarm/diagnostics.py
@@ -0,0 +1,30 @@
+"""Diagnostics support for Yale Smart Alarm."""
+from __future__ import annotations
+
+from typing import Any
+
+from homeassistant.components.diagnostics import async_redact_data
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+
+from .const import COORDINATOR, DOMAIN
+from .coordinator import YaleDataUpdateCoordinator
+
+TO_REDACT = {
+    "address",
+    "name",
+    "mac",
+    "device_id",
+    "sensor_map",
+    "lock_map",
+}
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, entry: ConfigEntry
+) -> dict[str, Any]:
+    """Return diagnostics for a config entry."""
+    coordinator: YaleDataUpdateCoordinator = hass.data[DOMAIN][entry.entry_id][
+        COORDINATOR
+    ]
+    return async_redact_data(coordinator.data, TO_REDACT)