Switching power supplies run hotter when the AC input drops below 100V. The unit compensates by drawing higher input current, which heats up the bridge rectifier and primary capacitor. If your site experiences brownouts, the PSU will overheat.
| Issue | Check | Solution | | :--- | :--- | :--- | | | Are vents blocked? | Clear space around unit. | | Fans | Are they spinning? | Replace broken fans immediately. | | Dust | Is the unit dirty? | Power down and clean with compressed air. | | Load | Is it >90%? | Move devices to reduce load. | | Temp | Is room >30°C? | Improve room cooling/AC. | hys3c210cs power supply hot
relies on forced-air cooling. If the unit is in a confined space or its vents are blocked, heat will build up rapidly. Switching power supplies run hotter when the AC