Hello, During the winter I replaced the thermostat in our house that controls heating and cooling systems. I have split system with 5 wires coming to the thermostat. When I was replacing the thermostat I accidentally did short circuit and heard the air fan for AC on the attic going off (this was the last time the AC worked). All breakers are turned on, I have power coming into the coil outside the house (at least to the breaker) and to the attic fan. There is a switch on the fan and I have power coming through the switch all the way to the motor. From the thermostat there are 3 wires coming into the fan. As I understand electricity the wires have no voltage and work as a switch (short circuit turns it ON) and my accidental short circuit should not cause any damage to the system. However, I can not get the fan or the coil to work after replacing the thermostat. I even try to switch back to the old one but no luck either.
How can I test the system and find out what's wrong. Could my short circuit cause any damage?
Jack