I purchased a home that was completely redone, electrical, plumbing, etc. My problem is that the laundry has a gfci outlet that keeps tripping. It's connected to a 20 amp breaker and it's the only line connected to it. the washer and dryer are connected to this outlet and it usually trips when there is a cycle change such as after the washer has filled with water and it switches over to start to wash even if the dryer is not running. What could be wrong?