What does the Worcester Bosch 2923 fault code mean?

Your boiler has detected an issue with the valve that controls the gas supply, meaning it has safely shut itself down to prevent any risk.

How much does it cost to fix Worcester Bosch error code 2923?

Typical repair cost for the Worcester Bosch 2923 fault is £250-450 including labour.

Unexpected feedback from the modulating/ current controlled gas valve

Valve response error

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

Older boilers — thermocouple, draught, gas supply.

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.