Bleeding an aluminium radiator on an open vented system - a guide for engineers

Provided below are the steps for a heating engineer or end-user to follow to bleed an Afinia aluminium radiator that is connected to an open vented system.

1. Turn off any heating or hot water demand and check the lock shield and thermostatic radiator valves are both open.

2. Insert the radiator key into the bleed valve and place a cloth underneath to capture any water. Twist the radiator key anti-clockwise until you hear a hissing sound as the air escapes, close the bleed valve when water starts leaking from the valve.

3. If switched off, turn on any heating or hot water demands and return to radiator to re-check for leaks.

Couldn't find what you were looking for?

Alternatively you can speak to a member of our team - Subject to Operating Times

Return to top
Are you a homeowner? Please click here.