How to replace an auto air vent AAV on a Worcester Bosch 30si 25si 24 junior 28 junior step by step

🔧 how to replace an auto air vent (AAV) on a Worcester Bosch 30si / 25si / 24 junior / 28 junior 🔧
Customer had a boiler service and the engineer spotted a new AAV was required but ddnt have one on the van so wanted to charge for a second visit to supply and fit one and the customer lost faith so I was called in…
Here’s a quick step by step how to replace one even when the manufacturers preferred method fails…

[@douglaughton7626]

All nice. I would also put a towel over the fan and vent the flow connection through the tube into a small container until it stops spluttering. Nice video 👍

[@colin4685]

Didn't want him back because he didnt have an aav? 😂wtf is this customer

[@paulmusther9492]

I allways use a small wire brush to remove alot of crap around the airvent.

[@deancbk3910]

You have every part as van stock😅😅😅

[@baitrunner1000]

That nib thing on them aav’s is another one of things that must have seemed like a great idea when they manufactured the boiler and wrote the book but in real life Never Works!! EVER