Boiler dripping

[paulno88yclarke]

My Vaillant Combi boiler is dripping. I have recently drained the system and when I filled her back up it seems she is dripping from the AUTOMATIC AIR VENT.

Any suggestions please??????????

 

[doitall]

what pressure is it reading on the gauge, it should be 1-1.5 bar cold.

 

[paulno88yclarke]

My system is working fine. Rads all at set temperature and pressure is at 1.5bar.
However system is just dripping from the automatic vent???

 

[doitall]

do you mean the auto air vent on the top of the boiler or the pressure relief valve that goes through the wall

 

[paulno88yclarke]

Thanks for the replies.

Yes, it is bubbling out of the Automatic air vent on the top of the boiler

 

[doitall]

Theres a float chamber bit like a carbaretta on a car, it can with care if you drain some water off to relief the pressure be taken apart and cleaned

what model boiler is it, hopefully I have a manual someplace on the cd

 

[paulno88yclarke]

Doitall,
Sorry for the delay, I got called away on an emergency.

VAILLANT VCWGB 242 E B.

What do you think is the problem? is it a common fault?

Regards

 

[kevplumb]

carb is blocked

oil boiler is it

sorry couldnt resist

xxxj

 

[doitall]

read my last post.

auto air vents quite often leak and yours probably has a bit of grit stuck under the seal.

if you drain the water out the boiler (after you isolate the electrics) the valve can be serviced.

 

[paulno88yclarke]

Doitall,

Thanks for the advice, us part time DIYers really appreciate web sites and people like you.

Thanks again

Paul

 

[kevplumb]

thats me telt then

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