Ok Ron heres what you will need to do, First take the screws out of the rear lip of the top panel, remove the top panel, next remove the control panel. Once the control panel is off disconnect the door switch, remove the screws from the bottom of the door panel then the screws from the top of the door panel, remove the door panel, next remove the belt from the drum and remove the drum.
Pull the wires off the flame sensor, this should read continuity, if it reads open it's your problem, Test the hi limit with the wires pulled off, if it reads open it's the problem.
If the flame sensor, hi limit and thermal fuse test ok with the wires off next pull the igniter out, test it with a ohm meter, if it reads open it's bad, If it reads continuity it's good.
Last off replace the coils on the top of the valve, This will be the likely problem, they cannot be tested so they would have to be replaced, this should fix the problem but if not the only other thing it can be is the control board, this will likely have a bad relay.
I would like to earn your highest rating, if you are not totally satisfied with my answer please hit the continue button.
If I have answered your questions to your satisfaction please feel free to come back at any time after rating me "Excellent service" for additional questions you may have at no further charge :)
Sometimes I will have to give bad news, Please try to find it in yourself to rate me for the service not the bad news.