| Condition | Action | | :--- | :--- | | Case < 70°C, stable | Clean vents, ensure airflow. It’s fine. | | Case 70-85°C, load <150W | Add a cooling fan immediately. | | Case >85°C, load <120W | Capacitors are failing. Replace the unit. | | Unit shuts down after 20 min | Internal thermal protection tripping. Replace with higher-wattage model. |
