What does the Worcester Bosch Red - blinking fault code mean?

Your boiler has detected that water is failing to circulate correctly, so it has temporarily shut down its internal pump to prevent internal damage.

How much does it cost to fix Worcester Bosch error code Red - blinking?

Typical repair cost for the Worcester Bosch Red - blinking fault is £150-300 including labour.

Abnormal running mode (pump stopped but still functioning).

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

Each noise points to a different fault.

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.