new air conditioner or repair 10 year old unit

thanks everyone, i didn't know that about no ports. kinda used to residential and auto ac stuff, mostly auto. and i do have a inductive amp reader, a couple years ago i checked the start up and running amps for both my units cause i was going the 2 honda eu2000 route to run one of them and i was seeing if the smaller unit would work with just one, it didn't , but i will look a little bit closer at it today.