A common commercial mishap – how to set a transformer for 208v
How to tap a transformer for 208 volts instead of 240 volts on an air conditioning system installed in a…
Shorted contactor coils – an emerging issue and how to diagnose it
How to troubleshoot a shorted contactor coil in the HVAC field. Find the video on AC Blown Fuses here: https://www.youtube.com/watch?v=61YBG2e04wk&t=3s…
Run capacitor fundamentals class
In this quick class we cover run capacitors, how the are rated, how they are tested and how they work.…
How to use an ohmmeter basics (and i make a super rookie mistake)
We show using an ohmmeter for continuity tests on switches as well as measured resistance on loads and I make…
Healthy housing principals for hvac contractors w/ joe medosch
How do you improve your customer's health as an HVAC Contractor? A good friend of HVAC school Joe Medosch answers…
Was i wrong? can a capacitor fail with high mfd?
In this video we test a dual run capacitor that SEEMS to show a higher microfarad test measurement than the…
High quality hvac measurements w/ tony gonzalez
Tony with Fieldpiece gives real world examples of how to use modern hvac tools for accurate measurement and diagnostics. Read…
Ac blown fuses – how to test them and why they blow
We show how a low voltage fuse works to protect the low voltage circuit in am air conditioner. How to…
Combustion air myths w/ david richardson
David Richardson from NCI talks Combustion Air Myths and more. Read all the tech tips, take the quizzes and find…
Basic voltage and safety measurements on an air conditioner
In this video we show some some very basic uses of a volt meter for safety and diagnosis for new…