We purchased a demo, unused Heartland Legacy dual-fuel on Ebay years ago for a great price but obviously no warranty. Big red flag, it came with loose extra electronics (but no explanation.) Not long thereafter, the lights would flash nearly everytime I used the cooktop above a simmer. I have survivied for years by resetting the clock everytime I cook. I tried using the convection oven mode recently, and the fan never turned on and the roast was seriously underbaked. Now I find that the range was discontinued and electronic problems are rampant. What are my options?

Kitchen Ranges - Heartland - 3530 Dual Fuel (Electric and Gas) Kitchen Range