The Heating Decoded diagnostic app
Learn how heating systems operate, follow structured fault-finding pathways and access electrical-control reference material.
Planned sections of the app
- Fault AtlasFind and diagnose faults
- SystemsS-Plan, Y-Plan and more
- ComponentsIdentify and understand
- WiringExplore system wiring
- LearnBuild your knowledge
- Quick referenceKey information at a glance
Section names and layout may change before release. Screenshots will follow from tested builds.
Alongside the manual
Built to complement the book
The printed manual is where you learn a system properly. The app takes that understanding to site.
It supports learning when you’ve got time and structured diagnosis when you haven’t, with reference material that links back to the matching part of the manual.
About the manualPlanned capabilities
What the app is being built to do
Features may change before release.
Guided Fault Atlas
Pick the system, then the symptom, and follow a structured pathway through the checks in a sensible order.
Heating system reference
Reference sections for the systems UK engineers meet most: S-Plan, Y-Plan and S-Plan Plus.
Searchable wiring information
Find the wiring information you need quickly. Approved diagrams are shown exactly as approved.
Testing and diagnosis explained
Structured explanations of each test: what to measure, where, and what the reading means.
Components, controls and circuits
Educational content on what each control does and how the circuit around it operates.
Quick reference
The key information you reach for on site, a couple of taps away.
The Fault Atlas
A pathway, not a guess
The Fault Atlas is planned to work from the symptom back to the cause, one logical check at a time.
- 1
Choose the system
S-Plan, Y-Plan, S-Plan Plus or another arrangement.
- 2
Choose the symptom
What the customer reported, or what you can see.
- 3
Follow the checks
Each step explains what to test, how, and what you should find.
- 4
Reach a conclusion
The pathway ends at a likely cause, or tells you where to look next.
About screenshots
We’ll only show real screens taken from a tested build. Until then, everything on this page describes what’s planned, not a finished app.
Subscriptions and licensing
Individual subscriptions and organisational licensing are planned. No prices have been confirmed, so none are shown.
Heating Decoded is for competent professionals. It doesn't replace manufacturer instructions, BS 7671, the Gas Safety (Installation and Use) Regulations, safe working procedures or your own professional judgement. Isolate and prove dead before you work on any circuit, and follow the instructions for the specific product in front of you.
FAQ
Questions people ask
When will the app be available?
There’s no release date yet. It’s being prepared for the Apple App Store and Google Play, and store links will be added here when the listings exist.
How much will it cost?
Individual subscriptions and organisational licensing are planned. Pricing hasn’t been confirmed, and we won’t take payment until it has.
Does it replace the manual?
No. The app is designed to complement the printed manual: the book for learning the system properly, the app for structured diagnosis and quick reference on site.
Does it replace training or manufacturer instructions?
No. It’s a learning and reference tool for people already competent to do the work. Manufacturer instructions, the regulations and safe working practice always come first.
Is Part Finder part of this app?
No. Part Finder is a separate app in the Heating Decoded family, with its own arrangements.
Want to know when the app is ready?
Register your interest, or talk to us about access for a team, a college or an organisation.