We have on, and used it for several years. The right side of the heather has stop working, and it doesn't get hot enough to click off. My husband wants to replace the right burners (so to speak, the right heating element.) We have misplaced our manuel. Is it dangerous to repair it? If not, how would we do it? Would you tell us how to do it? If it's not a good idea, where would be the best and cheapest place to get one? Thank you! Mrs. B. Bickham