Calling HVAC Experts

Last night, about midnight, I woke up and the AC blower was running, but was not cooling. This happened several weeks ago and it was just a bad breaker, which I replaced. When I checked things out last night, everything looked normal - drip pan dry, breaker not tripped, thermostat appeared normal. I turned everything off for about a minute, turned the breaker off and on and restarted the system. It's been working fine ever since. So, what happened? Thanks for your input.