Model #TGDS740PQ0 ESTATE residential dryer

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Question and Answers


Why won't my Whirlpool gas dryer always heat and advance the timer?


First, the timer should advance in the time cycles regardless if the dryer will heat or not. Now, if the dryer does not heat during the automatic dry cycles then the timer will not advance. The timer motor will only begin running once the operating thermostat is satisfied. Which means it must heat and reach the operating temperature before the thermostat opens and completes the Neutral path to the timer motor.

Since you had to replace the thermal fuse once already is an indication of restriction in the venting system or too long a vent system. When the dryer can not vent properly it can cause the burner flame to short cycle. It will come on and go off before it reaches the operating temperature and also take longer for the flame to come back on again. It will also cause the thermal fuse to open and then the thermal fuse will have to be replaced again.

Check the thermal fuse connections to make sure they are good and tight or the glow bar igniter will not glow and open the gas valve. Make sure the ORANGE wire is making a good tight connection as well as the blue wires or it may not heat or advance when set to the automatic dry cycles. NOTE: Disconnect the power cord from the power supply before removing the rear panel to check the connections.

If the burner ignites initially and then shuts off rapidly then takes along time before the burner comes back on would lead me to believe that you may have restricted venting system.

For testing purposes only: Disconnect the vent hose from the back of the dryer and dry one load of clothes. If the burner stays on longer and cycles back on sooner then this would indicate a venting issue causing your problem and most likely caused the previous thermal fuse to fail.

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Joey S -
Sears Technician
February 16, 2010

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