My A/C continues to run even after the thermostat says it should shut off. Can I shut off the A/C by tripping the circuit breaker until it can be looked at? Is there any safety issue with doing this?
Yes, it is ok to shut it off at the breaker until you can have someone qualified look at it. This is the easiest, safest option for you. It will ensure that everything is safely shut off, including the compressor, evaporator, and any other components that your particular A/C unit has.