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What are 'legs' on circuit breaker box?

23K views 12 replies 5 participants last post by  kjv  
missing leg

Please!!! my husband and I desperately need help. Here's the problem...While the AC was running the breaker that controls it was pulled out and therefore messed up the AC in which it would no longer run. It is an outside htg/ac unit. Just had the AC folks there to fix the problem and they said the AC was ok but the problem is that one leg of current is missing and we need an electrician to take care of it. Could someone please educate us as to just want this means? This is getting to be a really expensive endeavor. Thanks sooooo much for any help!:thumbsup:
I assume that you have 220v a/c. 220 has two wires (legs) which supply 110 volts each and a third which is common (or neutral). When the breaker was removed while a/c was running ("hot") there was an arching accross the breaker contacts and the "lugs". Lugs are the main supply wires to the buss bar. Check to see if any wires are fused or burnt off. I'm certain that arching caused the problem but if you are not familiar with electricity I strongly suggest you call an electrician. This is not a major repair.