I installed a 220 v 40 amp feed to my yard shed 3 years ago using underground. Two 20 amp breakers, one for receptacles, one for lighting circuit. OK until Jan this year when I noticed an unexpected increase in the utility bill. I did some welding and used a space heater during that time.
While trouble shooting I found a current draw on lighting circuit with no load on it. Also, voltage from L1 to ground is 220 while L2 to ground is zero. The lights inside shed as well as flood lights outside work fine as do the two 3 way switches and the one 4 way switch.
When lighting breaker is pulled, voltage returns to normal on L1 an L2. What up?
While trouble shooting I found a current draw on lighting circuit with no load on it. Also, voltage from L1 to ground is 220 while L2 to ground is zero. The lights inside shed as well as flood lights outside work fine as do the two 3 way switches and the one 4 way switch.
When lighting breaker is pulled, voltage returns to normal on L1 an L2. What up?