⚠
warning Worcester
Error Code LOPR
Low pressure indication — system pressure has dropped below the safe operating range.
? What Causes This
Leaks in the heating system, water loss, or insufficient initial pressurization.
✓ How to Fix It
- Check the system pressure via the HMI screen.
- Adjust system pressure between 1.3 and 1.7 bar using the external filling loop.
- If pressure continues to drop, contact your installer or maintenance engineer to check for leaks.
Source: page 6 of the official manual
From the manual
This error code appears in:
Worcester Greenstar 1000 GR1000W 30C NG Boiler