open the back pannel and use multimeter to check the wirings and everything checks ok. open the bottom front panel of the dryer and turn the dryer on. the igniter works and the flame came out for seconds and dies off. the igniter keep coming on, but it seems that the gas was not coming out. i checked the gas line valve and it was open. i had a good idea it wasn't the wiring or the gas line, it must be the coil-valve,(safety coil), that letting the gas flow. i order the parts, it came sooner, which is good, and it took me less than 10 minutes to install, and i only use a philip screw driver. i thank you for sending me the right part in short period of time.