Has anyone worked on a viessmann 100-w combi before ? I need to replace the diverter valve - I unscrewed it from the hydraulic block but for the life of me I can't get it out. I even spoke to Viessmann tech and they advised twisting and yanking hard but this tosser is not budging AT ALL. Is there perhaps a vacuum of some sort, it does have two seal rings. God I hate integrated diverters.
The part in mind for those wondering: https://viessmanndirect.co.uk/Boile...Block/012/Valve-Insert-Diverter-Valve-7858946
The part in mind for those wondering: https://viessmanndirect.co.uk/Boile...Block/012/Valve-Insert-Diverter-Valve-7858946
