Worcester bosh 30 CDI leaking at Auto Air Vent

[bobby_la_mesma]

Dear Team

I have a Worcester bosh 30 CDI system boiler which is 3.5 years old.

Yesterday I had a plumber switch it off to fit a new gas meter in the downstairs cupboard.

At 03:00 I heard a dripping noise and then found a leak from within the boiler from the Auto Air Vent. approx 1 drop per second. The boiler had not been running for since 22:30 the night before. I quickly drained the system which stopped the leak.

Is this a common fault? Is this a part replacement a DIY job? I'm a fairly confident technician but do not want to cause more harm than good on the boiler.

Thanks

 

[bobby_la_mesma]

Dear All

just in case another DIY persons visits.

Fitting the automatic air vent took a couple of mins and was very easy. The longest part of the job was draining, filling and venting the system.

part cost £7. Boiler runs lovely without any mess