[PatinKY]

I had set the oven to 375 to bake for 20 minutes. Left the room, when I returned the oven had switched to the self-clean cycle. Used the off/cancel to stop the cycle. Clean cycle stopped and was in locked position. Did this cycle for 10-15 min. then went back to self-clean cycle again. PF3 code showed - hit off/cancel again and cycle stopped. Oven was very hot to touch and was blowing out very hot air. After 10-15 min. did cool down and lock light went off. Time clock, inside lights, etc. working OK. Tried to use oven later and went thru pre-warm cycle, but heating elements never came on, was blowing cold air out thru vent. Could this be a thermostat problem?