BoilerTool
Home / Greenstar 27-30 i System / A1
A1

Pump stuck or running in air

Worcester Bosch Greenstar 27-30 i System

Cause 281 (Blocking)
Pump stuck or running in air. Little or no water in the system.
This code also applies to:
hello@boilertool.co.uk
© 2026 BoilerTool