Thank you for your question.
I am sorry you are having a problem with your treadmill. The choke on the treadmill is a coil of wire that is used to even out the voltage to the motor. When ac voltage is converted to dc it still has a little fluctuation. You can usually tell if the choke is defective by the color instead of gold color it will be a dark almost black color. If the choke looks fine, I recommend checking the walking belt. If the belt is too tight or needs to be lubed it will stop when you step on it. I have provided you with the instructions for checking the belt tension. To test the walking belt lubrication, do not turn the treadmill motor on. Set the elevation to the highest level. Stand near the front of the walking belt. Push yourself firmly toward the rear of the treadmill. If the belt is properly lubricated the belt will take you to the rear edge of the treadmill and dump you off on the floor. If you move and stop, the belt needs lubricating.
The part number for the belt lubrication kit is 219168. You can buy it at [ Sears Parts Direct | searspartsdirect.com/partsdirect/getPart!search.pd?=model+number&partNumber=219168
]. The cost is around $4.00. The application instructions should be in the package, but in case they are not, here is how to apply the lubrication.
Turn the walking belt until the belt seam is along the top of the front roller. Raise the belt on one side in the center of the walking board front to back as high as you can. Apply ½ the tube of lubrication to the walking board in a zig zag fashion moving from front to back. Move the belt until the seam comes up on top of the rear roller and lift the belt again and put the rest of the lubrication on the walking board in the same manner. Turn the treadmill on and walk on the belt for 10-20 minutes. Walk all over the belt to distribute the lubrication evenly on the walking belt and board.
I hope this is helpful.
Please let me know if you need further assistance.
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
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