HVAC Forge /

Hands-on HVAC training

Build better
troubleshooters.

Ten realistic service calls played directly on real manufacturer wiring diagrams — gas furnaces, rooftops, make-up-air units, central air handlers, walk-in freezers, and ice machines. Read the actual schematic, test the system, find the fault, and make the right diagnosis before the clock gets away from you.

10Progressive calls
6Real wiring diagrams
1Correct diagnosis

Training board

Choose your equipment

Pick the system type you are servicing today, then choose a call.

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Shop standings

Overall scoreboard

Ranked by calls completed, then lowest combined best time.

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Equipment Gas furnace
Power W call Fault
Select a tool, then select a component or test point.
Manufacturer wiring diagram