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