Yuji H Aiea , HI June 06, 2021 Appliance: Maytag Gas Dryer MGDC300XW3 Maytag Dryer Mgdc300xw3 / : Timer was broken and not keeping the cycles correctly (start button will not engage and the heater will not come on). How to replace Dryer Timer. Turn off the main power, remove the control panel backing, remove the timer, disconnect wires one at a time as you reconnect them to the new timer using screw driver and needle nose plyer. Put back the timer and the backing. The dryer is fixed. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes