My broiler flame started sputtering. I took it to be the ignitor which has failed in past on oven burner. I replaced it and the element glows nice cherry red. The broiler took a while to light but finally flashed a flame and lit but is still making the fluttering sound and flame looks low. So I went to turn it off the ignitor goes out but the broiler flame stays burning. I pulled the plug but still a low fluttering flame. I had to finally shut off the propane line to get it to go out. Am I looking at a failed safety valve? Or should I just replace the oven being it is 18 yrs old?

Thanks...My thoughts exactly it seems the valve is stuck. I've never heard of it happening before and google search comes up nill so guess it is rare. I left the propane shut off until I can fix.

I give up! I replaced the gas valve. I also put in the new igniter. The oven works fine so do the top burners. Yet still when I light the broiler it takes a good while to finally light (new igniter is good and cherry red). Then once turned off the igniter goes out but I get a small flame at the orifice head down by the air adjustment. It will only go out when propane is shut off. Makes me think something electrical is shorting telling the valve to hang slightly? I did order a new stove as the wife got her wish for a double oven. But want to clarify in case anyone else needs to learn from my troubles.