Your full record
Every tracked score on the platformYour record
Build roadmap
What’s built, what’s next and what’s planned
Each stage is finished and working before the next one starts.
Live wiring diagram
Hover or tap any wire or terminal to see what it is and what it connects to · tap a terminal to place a probe · tap a wire in A mode to clamp itVirtual meter
Event timeline
Measurement log
Dial
Buttons
Schematics
The wiring diagrams printed inside HVAC equipment, made live: toggle switches, watch coils pull in their contacts, and trace what is energized.
Schematic symbols
Tap a symbol to see what it means on a unit diagram.
Pick a symbol.
Abbreviations on unit labels
Service calls
65 calls ranked from beginner to expert. Every call is a real fault in the simulator. Read the complaint, inspect, measure, then commit to a diagnosis. Wrong guesses, unsafe tests and unneeded parts cost points.
Part Explorer
Pick a part or circuit: what it does, where it sits in the system, how it fails, and how to prove it with a meter.
Contactor
Representative 2-pole, 24 VAC coil, 30 FLA definite-purpose contactor. Not a specific manufacturer’s internal design. Simplified for study: in the field, contactors are replaced, not repaired.