the thermostat is turning on the a/c unit outside, which has a thick tube that runs from the outside unit to the house. the connection is in cased in ice. (i live in phoenix, az and it was 103 degrees today) the air handler unit in the attic is cold and the tub looking fan in the right side compartment is turning and blowing a little air. the blowing unit in the left compartment is not turning on. like i said the unit itself is turning on and the one fan is working and the other parts of the unit are cold, there is even a little condinsation building up on top of the non-motor/electrical parts of the unit. any ideas?