I replaced my thermostat, during which two of the wires touched and produced a small spark. The C wire was not one of them, but I think it was either the O or B wire. Anyway, now that the thermostat is in place, nothing will run. The fan or heat pump, not on heating or cooling.
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.