Hello, my dryer recently began taking 4 times as long to dry a load. Lastnight I watched it as i started a load. I set it for the longest timed setting and started it. It ignited and had flame for 7 min, went out then within a minute, clicked twice and element glowed followed by blue flame again for 2 min and went out again. The igniter glowed again a few times without any clicks and no blue flame. I stopped the dryer for a few minutes and started it again and the gas valve opened allowing blue flame. At that point I quit watching. Any help or direction would be very appreciated.