Unplug the dryer power cord. Turn off the gas valve that is connected to the Whirlpool Clean Touch dryer.
Remove the lint screen from its compartment. Remove the two screws next to the compartment.
Insert the putty knife between the front and top panels. Press the putty knife blade into the spring clips located at each front corner.
Lift the top panel up and back. Rest the panel against the wall or prop it up on its rear hinges.
Remove the screws holding the front panel in place. Unplug the door switch connector from its socket.
Lift the front panel straight up to disconnect it from the base. Set the front panel aside.
Reach under the tumbler drum. Move the idler pulley toward the left to loosen the belt. Slide the belt off the pulley and motor shaft.
Lift the drum out through the front of the Whirlpool dryer.
Disconnect the electrical wire leading to the ignitor. The ignitor is connected to the burner tube near the base of the dryer.
Remove the screw holding the ignitor to the burner assembly. Remove the old ignitor.
Position the new ignitor onto the burner assembly. Install the screw holding it in place. Plug the electrical connector into its socket.
Reverse the dryer disassembly steps to reassemble the Whirlpool Clean Touch dryer.