Viessmann 100-w 35kW open vent boiler....."boomph" noise as boiler ignites.

[bertle]

Seen to by the Viesmmann trained installer. Whilst on phone to Viessmann and with boiler they asked installer not to touch it further and that they will come and investigate/fine tune the air-gas ratio settings. Thanks for all of the advice,

Bertle.

 

[bertle]

Viessmann have inspected the boiler. They replaced lots of stuff. Problem sorted. Now thats service!

 

[SafeGasInstall]

that all doest speaks for the quality and reliability of boiler , but engineers knowledge .As far as I know they dont have there own engineers but they used third party engineers

 

[townfanjon]

They do have there own men, we have a Viessmann only guy up here, but also use subbies.
its a strange one this , I have fitted their open vent's but never the 35 kW one.