Even without the original , these quick fixes help:
The boiler features a manual control panel with a digital display to monitor system status and errors.
and steady performance but is a traditional bitermic or monothermic boiler rather than a high-efficiency condensing unit. This makes it more affordable upfront but slightly less fuel-efficient than newer "Premix" condensing models. Further Exploration View the full technical data and features on the Domino Product Page
For qualified personnel only – based on original schematics: