@mandy8371,
I'm unclear...are you saying the circuit breaker keeps shutting off..as in tripping?
If so, until you have an electrician investigate it, leave that a/c unit off and use fans.
In the meanwhile, check out the condenser coils and make sure they're free of ice and are not obstructed or something obviously wrong. If uncertain just wait til electrician checks the matter out..as to why the circuit trips the breaker.