In a large soup pot place whole chicken, onion, red peppers, celery, carrots, potatoes, diced tomatoes with their juices and then add enough cold water to cover by 1 inch. Over high heat bring to a boil. Then add parsley, garlic, 1 tablespoon of salt and pepper. Reduce the heat to medium-low, cover partially with a lid. Let it simmer for 2 hours, or until chicken is falling off the bone. Remove chicken and let it cool, for 30 minutes or until cool to the touch. Reduce heat to low and let the soup continue to simmer. Remove all the meat from the chicken and shred the chicken into large pieces. Discard the skin and bones. In a medium saucepan cook pasta as directed on box. Drain well and set aside in a bowl. Using a potato masher, mash the soup around a few times, letting some of the potatoes get a little smashed. Add the shredded chicken and noodles to the pot.