CY: I suspect it is, if indirectly. I suspect the 3 amp fuse is on the circuit that does several things -- including control the
240 volts to the outside unit.
Your AC uses much more : than 3 amps outside, and if a 3 amp fuse broke, it is just in the : control circuit, that powers the thermostat and the control of the AC, : including turning the compressor on and off. But even if that power : is gone, the 220 volts AC will still be there, and that can kill you.
CY: Which is it? Controls the 220 VAC or not? Yes, the 220 volt power can be there even though the 3 amp fuse is blown or missing.
: : If the 220 volts were on and you used a flat head to spread the wires : apart and there were no sparks or melting metal, iincluding the screw : driver, the two wires were probably at the same voltage and probably : connected to each other directly or indirectly.
CY: Or the metal screw driver blew the 3 amp fuse.
: : If you dind't have sense enought to turn the 240 off before doing : this, you better damn well read some books and learn more before you : kill yourself. Or just stay away from 220 and 240 until you learn : what you're doing, and hope you don't kill yourself on 110. (which is : possible but harder to do.)
CY: Or, maybe figure out which wire he means?
: : If you did turn the 220 power off before doing this, you should have : also measured the resistance between the two places after trying to : separate them. If it was zero, then they were meant to be connected. : It's unlikely enough that they would suddenly touch each other, but : much less likely that you couldn't separate them if they were meant to : be apart. : : >There is probably a circuit breaker or a removable connector in a grey : >metal box near the outside AC. Did you turn it off/remove it? If : >not, there are two circuit breakers in the house for most AC's. One : >for the furnace part and one for the outside. Turn them both off. : :