Oven takes an hour to heat to 350 Brand: Jenn-Air Model Number: JGR8750ADB Age: 5 - 10 years I have been having trouble for some time with the temperature in the oven, just recently it started taking a long time to heat to 350, etc... and I noticed that the flames on the burners fluctuate rather than being a steady flow. Now the oven sounds like the gas is comming on and shutting off constantly. Last night I could not get the oven to heat up past 190, the burners still work.:confused |