Derek ColeGM, Simmons One Hour Heating & Air · AI HVAC Answers

How to read your home ac amps

24 Feb 2025 · 1 min

Watch on YouTube

0:55

Short how-to transcript by an HVAC technician demonstrating how to read amperages on a home air-conditioner: reports fan amperage (~4.9 A of 5 A), compressor startup amperage (~12 A), running amperage (~10–11 A), notes a 19 A rated compressor and that a compressor saver is installed, concluding the unit is within safe range.

Questions this video answers

4.9 A (of a 5 A expected value).

About 12 A.

About 10–11 A.

19 A.

Yes — a compressor saver is already installed.

Chapters

It's reading today. So 45 is reading 44, which ain't too far. On the fan side. Reading 4.9 and it's a 5, so still in good shape. She already has a compressor saver installed on here, which helps the compressor door start up. Now I'm gonna just flip it back on it. We can get the compressor amps when it's starting so we can get a true start reading of it. Startup about 12amps, and we're running at about 10 or 11amps. It's rated for 19, so we're still in good range on that.