Model #ADVANCE 300 HORIZON Treadmill

  • Treadmill Assembly
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Question and Answers

Q:

Why won't the timer advance all the way to off?

A:

I added an image below with the wiring diagram to reference.

In order for the timer to continue to advance to the OFF position timer contact TM and OR must close. There is a 5000 ohm resistor wired in series in the orange wire circuit between the timer and heating element. The 5000 ohm resistor acts like a shunt to provide a neutral to the timer motor so that it will advance to the OFF position when timer contact TM and WB opens. If the resistor is shorted or open the timer is not going to advance to the OFF position. You will need to disconnect the resistor and test it with an ohm meter for resistance. You will likely find a bad resistor or an open circuit in the orange wire between the timer and where it connects at the heating element.

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Joey S -
Sears Technician
April 24, 2009
Q:

Why won't the timer advance all the way to off?

A:

I added an image below with the wiring diagram to reference.

In order for the timer to continue to advance to the OFF position timer contact TM and OR must close. There is a 5000 ohm resistor wired in series in the orange wire circuit between the timer and heating element. The 5000 ohm resistor acts like a shunt to provide a neutral to the timer motor so that it will advance to the OFF position when timer contact TM and WB opens. If the resistor is shorted or open the timer is not going to advance to the OFF position. You will need to disconnect the resistor and test it with an ohm meter for resistance. You will likely find a bad resistor or an open circuit in the orange wire between the timer and where it connects at the heating element.

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Joey S -
Sears Technician
April 24, 2009
Q:

timer will not advance

A:

Thank you for your question and I understand your concern.

The model number you provided is not a correct or valid model number. Without a valid model number I will not be able to pull up the model specific wiring diagram. Based on your symptom it sounds like you are missing Line 2 voltage. Some model dryers use a 220 volt timer motor. Since the unit is not heating or advancing, I suspect the timer and heating element is not getting the Line 2 (L2) voltage supply.

So that's what I can tell you at this point. I can give you more detailed help if you could provide me with the complete and valid model number. If you could supply me with that information I will be happy to assist you further.

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Joey S -
Sears Technician
February 17, 2012
A:

Cecil: Thank you for adding the correct model number. The timer motor and heating element requires 220 volts in order to advance and heat. Based on the failure, it sounds like the dryer is not getting 220 volts. The voltage must be checked across the two outside terminals at the terminal block where the power cord attaches. I do not recommend checking the voltage unless you have experience and feel safe and confident in doing so, otherwise I recommend calling a service technician to diagnose and repair your dryer. I added the wiring diagram in the image below to reference the timer motor circuit and heater circuit.

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Joey S -
Sears Technician
February 17, 2012
A:

Cecil: Good job and I'm glad you didn't get shocked and I'm glad I was able to help.

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Joey S -
Sears Technician
February 17, 2012
A:

Patrick: It's not always a heating element failure. It could have a burnt wire connection, lack of proper voltage, faulty thermal, operating thermostat, high limit thermostat, or a motor centrifugal switch failure. If the heating element is the original, it could be burnt in half.

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Joey S -
Sears Technician
May 29, 2012
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