!
error HP
Error Code LED blinks red two times
Power failure or potential power supply overload.
? What Causes This
Voltage selector not set correctly, power cable may not be seated properly, or a device might be causing excessive load.
✓ How to Fix It
- Check the voltage selector switch and ensure it is set to correct line voltage (e.g., 115V or 230V).
- Verify that the power supply cable is securely connected to the system board.
- Identify problematic device by isolating each attached device and testing.
Source: page 81 of the official manual
From the manual