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Customer Questions and Answers for Timer-Dryer by Whirlpool

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    • Part Number: AP4047639
    • MFG Part Number: 37001240
    • Made by: Whirlpool
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Questions & Answers

For Whirlpool Timer-Dryer (Part Number: AP4047639)

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When I depress the cycle selector button nothing happens. I only hear a low buzzing sound and the dial will not stay depressed. I am not sure how many components will need to be replaced.

Gene P for Model Number Maytag - Model MDET236AYW

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When I push the start button in and turn, it will not start the dryer. The timer still operates but the drum will not turn and no heat. Trying to decide if it is the timer-dryer or the thermal fuse. You show the exact timer-dryer that is installed in this Crosley in your picture. (whirlpool Ap4047639) The dryer was working fine and just stopped half way through the cycle. Any suggestions?

Steve for Model Number Crosley Heavy Duty 22 lb. Capacity Electric Dryer

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My dryer does not automatically turn off in the auto modes. Is there a moisture sensor or something like that need to be replaced?

Eric for Model Number mdg2706aww

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Install a new timer and wires seem to be right. The dryer will not start but has power. Light and buzzer works.

Ron for Model Number MDET336AYW....37001240 PART

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My dryer won't heat at all most of the time. Some times it's a bit warm but not much. When I put it at normal dry, the timer stops moving at the middle of the cycle. But it continues it's cycle eternally. I have to stop it manually (open the door) otherwise it will never stop. The 2 other cycles are ok. Goes from start till the end normally but no heat.

Carolyne B for Model Number Amana ND2335AZW

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My dryer won't heat at all most of the time. Some times it's a bit warm but not much. When I put it at normal dry, the timer stops moving at the middle of the cycle. But it continues it's cycle eternally. I have to stop it manually (open the door) otherwise it will never stop. The 2 other cycles are ok. Goes from start till the end normally but no heat.

Carolyne B for Model Number Amana ND2335AZW

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Looking at the electrical schematic, when the dryer is in regular heat auto mode, the timer motor should get power through the cycling thermostat which will send power to the V terminal on the 3-position switch. The switch won’t affect this except when LI to C (regular heat) continuity is disrupted. I checked the V terminal (connected to the same orange wire as the cycling thermostat) with the dryer running (reg heat and auto) and there was no power. But I think this is the case most of the time since the cycling thermostat is probably not in the position to send power to the timer. Am I off base? If not, what next?

Chris for Model Number ADG7005AWW

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I did not mention in my first question about “no timer movement in both auto dry modes” that I checked the temperature switch. When in fluff mode, there was continuity between LI and V, when in delicate mode there was continuity between LI and C and between LI and I and between C and I, when in regular mode there was continuity between LI and I. I assume these are the correct readings. If they are then I am still at a loss of what to do next.

Chris for Model Number ADG7005AWW

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The timer for my dryer does not move when in the auto dry modes (regular and wrinkle free) but it does move when in the time-dry mode. I have replaced the timer unit (AP4047639), the cycling thermostat (ap4047610), the limit thermostat (ap4290151) and the Dryer thermal fuse (ap4048636). The timer still does not move when in the auto dry modes and when in the time-dry mode the dry times are unusually long. It seems like the temperature in the dryer is not as hot as it should be (there is heat, just seems a little lower than "normal")but I haven't measured it. I'm at a loss what to do next.

Chris for Model Number ADG7005AWW

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I have a dryer that when you push in the control knob to start that also controls the time, and starts the heat. The button will not stay pushed in which than will not keep dryer running. If you push and hold knob in it will start and run but not heat up. Does this need part # ap4047639 or do you think it could be something else? Thank you for your help and advise.

Dave for Model Number mde2706ayw

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