Circuit Breaker trips when system is turned on.
Just had annual maintenance, so a bit suspicious... Have a heat pump in the attic, and an A/C unit outside. Since service call, when the system is turned on at the thermostat, the circuit breaker trips after a few minutes. Heat pump continues to run.
Comment on hkstroud's post
Thanks. Yes, heat pump/air handler in the attic and central A/C unit outside. Circuit breaker to the A/C unit trips. Main GFCI is also tripping, but not every time the breaker trips. My electrician is coming tomorrow. Since he doesn't normally work on A/C units, it will be helpful for him to have some things to look for.