estate gas dryer not heating up

How to Replace Dryer Gas Valve Coil Kit for Estate TGDX640JQ3 No heat or not enough heat AP3094251 Step by step instructions on how to replace a Dryer Gas Valve Coil Kit for Estate TGDX640JQ3 No heat or not enough heat AP3094251 for Dryer Washer Dryer Combo made by Whirlpool Speed Queen KitchenAid Roper Kenmore Maytag Magic Chef Norge Admiral JennAir Estate