Model #NSX-D11 AIWA Tabletop Systems

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Question and Answers

Q:

The D11 LED on the motor control will light if voltage is applied. Is this when the treadmill is plugged in or with the safety key in and the speed set?

A:

If the D11 Led is not on, the treadmill is connected to a good power source, and the circuit breaker on the treadmill is good and is turned on, the motor controller is bad.

If you have 120 volts ac at terminals AC1 and AC2, Led D11 should be on.

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Jimmy K -
Sears Technician
June 01, 2009
Q:

My Proform L18 treadmill stops while running. Any thoughts?

A:

You need to check the ac voltage at AC1 and AC2 when the D11 led goes off. If the controller is receiving 120 volts ac across AC1 and AC2 and the D11 led goes off, the motor controller needs to be replaced.

If the ac voltage is going away, there is probably a problem in the treadmill wiring.

I am sending you an image showing the led's on the controller and giving you the troubleshooting information.

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Jimmy K -
Sears Technician
January 06, 2010
Q:

problems with proform treadmill

A:

Thank you for your question.

I am sorry you are having a problem with the treadmill. First, double check all of the electrical connections. If the connections are fine, you will need a volt ohmmeter to diagnose the treadmill. If you have a meter please follow the diagnostic information in the images below. The instructions include live voltage checks. If you feel confident that you can make the checks safely, you should be able to pin point the problem. If you do not feel confident in making the checks please have a service technician service the treadmill. If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website: Sears Home Services .

I hope this is helpful. Please let me know if you need further assistance.

Thank you for using Manage my life.

Mark T.

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Mark T -
Sears Technician
December 06, 2012
A:

Anonymous,

Before ordering another new power supply, I recommend checking the AC voltage to the power board. You should have 120 volts on the LG1 and LG2 terminals. If you have the voltage on these two terminal and there are no lights I recommend replacing the power board.

Please let me know if you need further assistance.

Thank you for using Manage my life. Mark T.

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Mark T -
Sears Technician
December 13, 2012
A:

Gary,

To properly check the voltage, you need to place one meter lead on the LG1 and the other meter lead on the LG2. If you have a reading of 120 volts but the LED labeled LD2 is not lit, the power supply board is defective.

Thank you for using Manage my life. Mark.

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Mark T -
Sears Technician
December 18, 2012
A:

Gary, If you ordered the power supply board from Sears parts direct please call 1-800-252-1698 for an exchange. If you have any problems with the exchange or the new part, please let me know I will be happy to assist you. Mark

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Mark T -
Sears Technician
December 23, 2012
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