diff --git a/goodwe_controller/DOCS.md b/goodwe_controller/DOCS.md
index 837742b..d925b8d 100644
--- a/goodwe_controller/DOCS.md
+++ b/goodwe_controller/DOCS.md
@@ -16,6 +16,11 @@ You need:
 - A T-CAN485 (ESP32) flashed with `firmware/goodwe-master.yaml`
 - A grid-power sensor already working in Home Assistant, updating every ~5–10 s
 
+After installing, turn on **Watchdog** on the add-on's Info tab. A crashed
+control loop stops the add-on at 0 W, and the Supervisor restarts it only when
+Watchdog is on (it is off by default). See
+`DECISIONS/SAFETY-61-control-task-death.md`.
+
 ## The safety model, in short
 
 The inverter **holds its last command forever** — it has no meter-timeout. So: