What does the Worcester Bosch E01 fault code mean?

Your boiler has detected a fault and needs to be restarted to try and clear the error.

How much does it cost to fix Worcester Bosch error code E01?

Typical repair cost for the Worcester Bosch E01 fault is £120-250 including labour.

Locate the blue 'Reset' button on the front control panel.

No technical description provided in text for this specific code; manual context implies common fault reset procedure.

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.

7 signs repair isn't worth it anymore.