What does the Worcester Bosch EF 349 fault code mean?

Your boiler is struggling to move water around the system properly, causing it to run at a very low power to prevent overheating.

How much does it cost to fix Worcester Bosch error code EF 349?

Typical repair cost for the Worcester Bosch EF 349 fault is £120-£300 including labour.

Central heating boil detected – boiler operating at minimum burner load with temperature difference greater than 18°C between Flow & Return.

Check that all radiator valves are fully openEnsure the boiler pressure is between 1.0 and 1.5 barBleed all radiators to remove trapped air

Each noise points to a different fault.

Work through these before the call-out.

Lockout fault with a reset-needed pattern.