We just had our kitchen remodeled, and 5 new electrical lines were installed:

Line/circuit 1: Room lights and hood

Line/circuit 2: 1st 1/2 of the outlets + 1st GFCI outlet

Line/circuit 3: 2nd 1/2 of the outlets + 2nd GFCI outlet

When we turn the hood on along with the room lights, it trips the breaker to line/circuit 1, even though only 4.7 of the 15 amps is being used. The GFCI outlets also sometimes trip even though they are on separate circuits.

When we turn the hood on without the room lights, it works fine and uses only 0.7 of the 15 amps.

When we plug the hood into the GFCI outlets (Line/circuit 2), it trips circuit 2 ***AND*** circuit 1, even though it is not longer connected to circuit 1.

Any ideas? Crossed circuits? Problem with the hood? Other ideas/recommendations?

Thank you!