While you wait for answers, we may have found some information which could help you.
Success
Message
Boiler coming up but heating and hot water not working?
Myson Touch?
air in pipes?
My son touch v2 padlock issues?
has my central heating pump started to seize/jam up?
re: Myson Main Masquerade as Fire?
coal layout?
Pressurising a Myson Marathon free standinding boiler 50B?
How do I replace an old boiler with minimum change?
Why red light on ?
Myson velaire oil pump?
Thermostat question?