Vincent C Lewiston , NY January 20, 2017 Appliance: Maytag Gas Dryer MDG9700AWW Maytag Dryer Mdg9700aww: No heat or ignition. How to replace Dryer Light Bulb. Replaced valve coils and igniter. Parts worked after a couple days of wearing in but not every time. Checked all parts again and found that the thermistor had a higher resistance than it should have according to the paperwork the dryer came with. After replacing the thermistor and of course cleaning the vent before all the repairs I have had great results. It was worth the effort. Do-It-Yourself Rating: Repair Time Estimate: 2+ hours