A1 281 — Pump stuck or running dry

What does A1 281 mean?

The boiler's pump is either stuck or running dry, possibly with air in the system. This can lead to inefficient heating or pump damage.

• Pump obstruction or mechanical fault.
• Air in the heating system.
• Low system pressure.

Click steps to track your progress.

1. 1

   Check the boiler's pressure gauge and top up the system if the pressure is low.

2. 2

   Attempt to bleed the radiators to release any trapped air in the system.

3. 3

   Reset the boiler using the dedicated reset button or by cycling the power.

4. 4

   If the pump remains stuck or runs dry, contact a Gas Safe registered engineer for a professional inspection.