Field how-to guides
Short, specific field procedures — each one ends in a graded diagnostic lab where the same sequence is scored. Training only; the authorities in your region issue their own credentials.
How to Test a Run Capacitor | HVAC Lab
The compressor hums, kicks, and gives up — and from the driveway it looks exactly like low charge.
Read the guide
Superheat vs Subcooling | HVAC Diagnostic Lab
Superheat says one thing, subcooling says another, and the refrigerant cylinder is already in your hand.
Read the guide
A2L Refrigerant Safe Handling | Diagnostic Lab
A2L refrigerants run in more new equipment every season, and they forgive fewer sloppy habits than the A1 gases they replace.
Read the guide
Training scope and safety
- The Academy provides technical training and instructional scenarios only.
- Completion does not constitute a professional license, electrical certification, or authorization to work on live electrical systems.
- Work on photovoltaic, battery, and electrical systems involves potentially lethal voltages and must only be performed by qualified persons, in accordance with applicable codes, regulations, and employer safety programs.
- Labs and materials are educational. The technician and their employer remain solely responsible for safe work practices, isolation, PPE, and compliance on actual jobs.
- EcoPowerHub AI / EcoService OS makes no warranty that completion of this training guarantees safe or correct field performance.