Hello, I have a Whirlpool 30 inch set-in self cleaning electric range, model number RS6700XKN 4. The bottom oven element is no longer working. I was curious as to the age of my stove, wondering if it is best to get it fixed or should I just look for a replacement. I've owned the home for 12 years, and it conveyed with the house. Please advise. Thank you! Carol Hull