I started to have a gas smell all the time. Hired service tech to look at. He determined i had a leak at the top of my regulator. I have LP gas hookup. It is leaking where you flip the gas adjustment (flow) to lp from natural. I have had the outside regulator replaced that controls my gas flow from outdoor tank. I have replaced regulator on stove 3 times, and each time they start to leak out of top of regulator. Service apoligized and refunded my service call money. They said regulator should never leak there and they can’t figure out. I am stumped!!!