Viessmann Vitodens 100 E8 on Display

Hi,

I am constantly getting an E8 message on my Viessmann Vitodens boiler, which the user manual says “Burner Lockout”. It happened many times but I have managed to get my boiler going but today I have not been able to run it. Any suggestions?

Thanks for your help

John

Hi John,

One of the common problem, which will not give any indication of what is wrong with the boiler, is a burner lockout. Usually, boiler can face burner lockout due to severe blockage. You can follow these steps in order to resolve the issue:

Firstly, verify your gas supply along with gas train & connecting a lead
Secondly, verify sharing out of gas type, check ionization electrode
Do check the distance to the burner gauze & impurity of electrode
Lastly, press ‘reset’