What does the Worcester Bosch 2963 B fault code mean?

Your boiler has stopped working because its internal sensors are sending incorrect information or have been disconnected.

How much does it cost to fix Worcester Bosch error code 2963 B?

Typical repair cost for the Worcester Bosch 2963 B fault is £90-180 including labour.

Signal from flow and heat exchanger temperature sensor outside the permissible range – the connecting lead needs connecting correctly

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.

Sludge build-up — needs flushing, not bleeding.

Safety-critical — turn off, read this.