gurgling boiler when i empty kitchen sink

[alex30]

gurgling noise from boiler when kitchen sink is emptied. my boilers overflow pipe is connected to the sink drainage. i recently had my boiler overflowing. any ideas on a solution?

it is a two year old modern combi boiler, the vokera compact 25 model.

thanks

 

[45yearsagasman]

You need to get both the sink drain pipe and the condensate piping checked for blockages. I'm assuming this has just started.

 

[alex30]

Yes it has just started. The boiler only gargles when I drain the sink very quickly with a lot of water in it. Can I easily check for blockages in the condensation and drain pipe by myself or do I need a pro for this.

This gargling developed after my feeding loop was stuck open overnight before I replaced it. I am sure I replaced it perfectly.

Thanks