What does the Worcester Bosch A1 281 fault code mean?

Your boiler's internal pump is unable to move water around the system, likely because it is jammed or there is too much air trapped inside it.

How much does it cost to fix Worcester Bosch error code A1 281?

Typical repair cost for the Worcester Bosch A1 281 fault is £180-350 including labour.

Check that your system pressure is between 1 and 1.5 bar on the pressure gauge.

Pump stuck or running with air in the system

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

Six most common causes of dropping pressure.

Each noise points to a different fault.

7 signs repair isn't worth it anymore.