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
