Common Problems

How to bleed a radiator 

This video demonstrates how to bleed a radiator, in order to release built up air and solve heating problems such as a 'gurgling' sound and cold radiator tops.

How to Repressurise a Heating System with an Internal Filling Key 

This video shows you how to repressurise your heating system using your Greenstar gas boiler's internal filling key.

A guide to the Worcester Bosch MT10 mechanical timer -

This simple control allows you to set the daily times for your central heating. It's compatible with Worcester's Greenstar condensing combi boilers-

For a full range of central heating solutions and instructions of use visit the Worcester Bosch YouTube channel -