We purchased a Winrich ventless gas stove about 4 years ago clearance @ Home Depot. Our pilot lite also would not stay lit & we called the local gas company who came out & told us we needed a new oxygen depletion sensor. They took the part & were unable to match it up w/ anything comparable. They ended up suggesting I contact Home Depot to see if any other manufacturer is making replacement parts for Winrich. We haven't contacted Home Depot yet but this will be our next step. If that doesn't work, we'll probably just buy a new stove.