Joe G Isanti , MN October 26, 2020 Appliance: General Electric General Electric GTDP400GM1WS Ge Dryer Gtdp400gm1ws / : Dryer would not ignite the gas. How to replace Dual Coil. I Ohm checked the (2 Prong) gas valve coil and it was shorted. It measure 1.2 Ohms. Replaced that coil and all was great. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes