Before we start
What should I call you?
Optional, but makes it a little more personal.
Who is using this tool today?
Built for professional and training use. Designed to support structured fault-finding, not replace manufacturer instructions, live testing procedures, or engineer judgement.
How do you want to start?
Use a fault code if you have one. If not, start with what the boiler is doing.
Beta version — built for real-world engineer feedback and ongoing expansion.
What manufacturer are you working on?
Which range/model is it?
What fault code is showing?
Choose the closest match and work through the checks one step at a time.
What is the boiler doing?
Choose the closest behaviour. This will route you into a sensible first check.
