Seeing the Worcester Bosch 226 error code can be concerning, particularly if you've lost heating or hot water. In many cases, this code relates to a safety sensor and may clear after restarting the boiler. If it keeps coming back, the boiler should be checked by a qualified Gas Safe engineer.
Boilers display fault codes to help identify problems quickly. Some issues can be resolved by the homeowner, while others need professional diagnosis. If you're unsure what your boiler's fault code means, see our complete guide to Worcester Bosch fault codes.
What does the Worcester Bosch 226 error code mean?
The Worcester Bosch 226 error code indicates that a safety sensor has triggered a protective lockout recorded in the blocking error history. This safety feature prevents the boiler from operating until the issue has been cleared.
Often, restarting the boiler restores normal operation. If the code clears and doesn't return, the issue may have been temporary.
If the error returns regularly, there is likely to be an underlying fault that needs investigating by a Gas Safe engineer. Simply resetting the boiler repeatedly is unlikely to solve the problem.
Can you fix Worcester Bosch error 226 yourself?
You can safely:
- Restart the boiler using the manufacturer's reset procedure.
- Check whether the error clears.
- Monitor whether the fault returns.
Do not remove the boiler casing or attempt internal repairs. Gas appliances should only be worked on by qualified engineers.
When should you call a Gas Safe engineer?
Book an engineer if:
- the 226 error code keeps returning.
- the boiler repeatedly locks out
- heating or hot water doesn't return after resetting
- other fault codes appear alongside error 226
A qualified engineer can diagnose the underlying fault safely and replace any failed components where necessary.
Stay safe with Worcester Bosch boiler faults
Although the 226 error code is often cleared with a simple restart, repeated faults shouldn't be ignored. Getting the problem checked early can prevent further damage and reduce the risk of a complete breakdown.
If the error continues to appear after restarting the boiler, our boiler repair service in London can diagnose the fault and restore your heating safely.
Worcester Bosch 226 error code still showing?
Book a Gas Safe boiler repair engineer in London and we'll diagnose the fault and get your heating working again.
