We are installing a new kitchen counter top and with it a new sink, faucet and garbage disposal. Our contractor is really more of a handyman. The new sink is deeper than the old one and so the disposal had to be really wedged in to place below the sink and is practically sitting on the plumbing. The morning after this was installed we noticed the trouble with the GFI switch and the circuit. The Circuit runs along the wall and includes the ceiling light, the disposal and the path along the wall which is on a gfi switch. The first plug has the GFI, then beyond are three other plugs. The GFI will trip and when you hit reset it clicks and then immediately clicks off. Then the circuit will trip. The other morning we actually heard it "ZZZT." That part makes me most afraid. My handy man said that perhaps the pulling out of the old counter top moved around some wires behind the wall where the gfi is. Do you think that the positioning of the disposal could have anything to do with this. My husband is going to try replacing the gfi. What beyond that does anyone reccomend?