I have a piggy back washing machine, gas, when i turn the washing machine on, the water just keeps going, doesn't stop, water all over my floor, the washer will not go on hot water even though i do have it and the hot and cold is on, just keeps coming out cold water, when the machine spins, goes so fast then starts banging against the side of the machine... can you tell me if it can be fixed or just buy a new one.