I was given this mashine from a fast food place that said it was left there by the previous owner. It did not take in water so I cleaned up the autofill solenoid and turned it on. Filled up just fine and heated up. When pressure was about right and the groupheads were hot it makes a loud click from the grey electronics box and blows my kitchen fuse. Is there something wrong with the machine or do I simply not have enough power in my kitchen? I've tried different outlets/fuses but no luck. I can see that something moves in the grey box when it clicks. Being a newbie I really have no clue. Anyone knows where to start?