Neptune Gas Dryer, ignites for 20 seconds then flame shuts off.

Hi, So I have been doing some research on my dryer and have run into a bit of confusion. When I turn on my dryer flame ignites, then after 20 seconds flame shuts off, leaving clothes cold and wet but dryer still runs. In my research i have found the common cause would be to replace the gas coil solenoid, in my search for this particular part I can not find it available for my model. Starting to think this coil may not be my issue after all. Any suggestions will be greatly appreciated, never imagined people would be so upset about not having clean socks and underwear. lol thanks.

More then likely it’s your coils from the problems you stated and their cheap to replace. Also make sure your venting is leaving your house very good. Yeah your right on the coils not on anything on this schematic More then likely these parts will work for you their pretty universal when it comes to coils.
http://www.appliancepartspros.com/whirlpool-coil-kit-for-279834-ap3094251.html
Watch the video below to help
Gas Dryer Repair Video: Heating Problems - YouTube

Thank you so much for your feedback, it is appreciated!