Just installed a honeywell thermostat model RTH230B. Connected as follows
Rh to Red
Rc to Blue
W to White
Y to Yellow
G to Green
Set J2 Jumper to HE
A/C failed to come ON. Checked Panel light showing Rapid flashing indicating Short circuit to 24 v/vac Reverse polarity. How can I reset it.
HVAC Carrier Central Air Condition model 388R304
Thanks