How to replace auto air vent / Leaking auto air vent on Glow Worm Energy combi boiler step by step

Опубликовано: 16 Июль 2026
на канале: B Heating Service
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How to replace auto air vent / Leaking auto air vent on Glow Worm Energy combi boiler step by step

This video is for GAS SAFE ENGINEERS only, always follow manufacturer instructions.

Before to start any work on gas appliance isolate the power, turn off the gas and the waters.

Dripping boiler on the button caused by leaking auto air vent.


1. Download manual
https://www.glow-worm.co.uk/glow-worm...
2. Remove front cover
3. Isolate the flow and return valves
4. Drain the boiler
5. Leave open the drain point
6. Remove auto air vent
7. Replace auto air vent
8. Close the drain valve and open the flow and return valves
9. Re-pressurise the heating system till 1 - 1.5 bar