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otrfun's avatar
otrfun
Explorer II
May 03, 2013

Using Clamp-On Multimeter to Check a/c Surge Current

I'm thinking about purchasing a Yamaha EF2400iSHC generator to power my 13,500 BTU a/c. I know the odds are in my favor that it will work, but ya never know. Some of you have mentioned using clamp...
bl0bby's avatar
bl0bby
Explorer
May 21, 2013
otrfun wrote:
Very surprised the surge current more than DOUBLED when restarting the a/c--from 18 to 39 amps. Wow, no wonder some generators have problems with these RV a/c's!


Yeah, it was hard to restart, even though it was plugged in. It was over a regular 100ft extension cord plugged into my 1930s garage wiring, so not a great connection, and it labored for a while before starting. But like I said, I can deal with not being able to restart right away, it was just fun to test it.

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