Everything is on and not tripped at the circuit breaker, so I worry that I shorted something.
The heat pump worked fine before I replaced the thermostat, so I doubt anything is wrong with it, and it was replaced just over 2 years ago, so it's still very new.
When turning on cool or heat at the thermostat, it does make a click noise as if it were switching something on, but nothing runs. I've double-checked the wires in the thermostat, and everything appears to have been wired properly.
Any ideas or suggestions would be appreciated. Thanks.