I was doing a remodel for a customer. We were changing Gasoline Dispensers, POS, Signage and canopy lights etc. We're changing 2 of the 4 dispensers while station is still operating on the other 2. The new Dispensers should be phased with the POS equipment so I move some stuff around in the panel to get enough room to get all electronics on the same phase. The problem was the new stuff and old stuff were now phased differently. We were testing the new equipment when a customer came in and turned on the old equipment, pooof out came the magic smoke [Linked Image] Thankfully the new equipment had cube relays and the old had triacs, the cube relays won:P