I just bought a secondhand treadmill a few weeks ago. i noticed that while i was mid-walk, the treadmill would just stop for no apparent reason. and then about a week ago, the treadmill matt stopped moving all together. i have read the manual and it says that the treadmill shouldnt be connected to an extension lead and/or shouldnt be shared with other appliances such as computers, tvs, etc. i actually did have the treadmill connected to an extension lead (because i had the treadmill too far away from a power point) and moved it to plug it directly into a power point. but the matt still wont move. the screen still works and it beeps and everything- the matt just wont move.... any tips on what might be wrong and how i can fix it?

There could be a few possible reasons why your Reebok One GT40s treadmill is stopping suddenly after only a few minutes of use. Here are a few things you can try:

1. Check the power cord and outlet. Make sure that the power cord is securely plugged into the treadmill and the outlet, and that the outlet is functioning properly.
2. Check the treadmill's safety key. The safety key is a small device that helps to prevent accidents by shutting off the treadmill if it becomes disconnected from the control panel. Make sure that the safety key is properly inserted into the treadmill and the control panel, and that it is not damaged or loose.
3. Check the belt and deck. If the belt is slipping or the deck is not properly lubricated, it can cause the treadmill to stop suddenly. Make sure that the belt is properly aligned and tightened, and that the deck is adequately lubricated according to the manufacturer's recommendations.
4. Check for any visible damage or loose parts. If you notice any visible damage to the treadmill or any parts that are loose or not functioning properly, it may be necessary to have the treadmill serviced by a professional.

I hope this information is helpful. If the problem persists after trying these steps, it is recommended to have the treadmill serviced by a professional to ensure that it is functioning safely and correctly.

see the video and proceed according. God bless you

lift the sides of the w/belt the hieght should be 2-3 inches. if more to loose,tighten it up. still have a issue take hood off and check the motor belt. if you find a bunch of black dust. your belt is worn or on its way out.PS you can find the belt on the web.

The motor controller weakens over time because of the excessive amperage draw of the motor do to lack of lubrication (which wears the walk belt and walking deck).

Take an amperage reading of the motor it should be 2-3 amps with no one on it, with someone walking on it it should be around 6-12 amps. I would bet yours is elevated above 6-12 amps.The controller is dropping output because of the friction problem.

The first thing to try after testing the amperage is to lubricate the walking platform. Then retest and see if the amperage comes down and it doesn't shut off.

If it does then the next step would be to replace the walking deck. If the amperage still is up you may need to replace the walk belt second and finally if after replacing the deck and belt, if the unit is still shutting down replace the motor controller.

It might just need a simple adjustment of the running belt that can eliminate the slipping refer to you owner's manual for the procedure. It will be close to all treadmill adjustments.
Here is a generic procedure for adjusting the belt:
If the walking belt slips when walked on. Run the treadmill @ 3 to 4 mph, walk for a few minutes, Using the allen wrench, turn both rear roller adjustment bolts clockwise, 1/4 of a turn. Then repeat adjusting procedure until walking belt is properly tightened.

Unplug unit then remove motor shroud the walk on the belt normally and try to stall the belt to make it slip. Be careful during this test. If the problem is in the drive belt, either the drive belt will stop when stalled or the front roller will stop when stalled.
Find the set bolt(s) on the motor. This is typically run through only one side of the motor mount or may be on both sides but it does not run the full length of the mounting..
Look for a bolt that will tension the motor. If it has this bolt, it typically runs in the same direction parallel with the drive and walking belts. If your treadmill is not equipped with a bolt as described above, the drive belt must be tensioned by hand. While one person applied increased tension to the drive belt, the other person should tighten the motor set bolt(s) that are described in Step If your treadmill is equipped with this bolt (very few are) the repair will only require one person.
If the motor, drive belt, and front roller continue to turn when the walking belt is stalled, the problem is with the walking belt slipping on the front roller.
If the walking belt slips when walked on. Using the allen wrench, turn both rear roller bolts clockwise, 1/4 of a turn. When the walking belt is correctly tightened, you should be able to lift each side of the walking belt 3 to 4 inches off the walking platform. Be careful to keep the walking belt centered. Plug in the power cord, insert the key and carefully walk on the treadmill for a few minutes. Repeat until the walking belt is properly tightened.

Hi James
Unplug unit remove motor shroud then plug unit back in , press start and begin walking on the belt normally and try to stall the belt to make it slip ( planting foot to stop the belt).
Be careful during this test. If the problem is in the drive belt, either the drive belt will stop when stalled or the front roller will stop when stalled. Here is the procedure for adjusting the drive belt.
Find the motor mounts. Many motors in Icon treadmills have a main pivot joint in which a bolt runs the full length of the motor mount. This bolt will require loosening to provide maximum adjustability. Some models have a single jack bolt and others have an auto tensioner. Single jack bolts are the easiest to adjust.
Find the set bolt(s) on the motor. This is typically run through only one side of the motor mount or may be on both sides but it does not run the full length of the mounting. Loosen this bolt(s) but do not remove. Jack bolt models will have flat mounts and may contain up to four bolts.
Look for a bolt that will tension the motor. If it has this bolt, it typically runs in the same direction parallel with the drive and walking belts. If your treadmill is not equipped with this bolt, skip to Step 4. If your treadmill is equipped with this bolt (very few are) the repair will only require one person. Using 2 7/16" wrenches, make a few turns to this bolt, tighten the bolts and test your treadmill for slipping. If belt continues to slip, and if their is too much tension ( you should be able comfortably twist the drive belt 90 degrees ) then replace drive belt.
If the motor, drive belt, and front roller continue to turn when the walking belt is stalled, the problem is with the walking belt slipping on the front roller, here the procedure adjusting the walking belt.
If the walking belt slips when walked on, first remove the key and UNPLUG THE POWER CORD. Using the allen wrench, turn both rear roller bolts clockwise, 1/4 of a turn.When the walking belt is correctly tightened, you should be able to lift each side of the walking belt 3 to 4 inches off the walking platform. Be careful to keep the walking belt centered. Plug in the power cord, insert the key and carefully walk on the treadmill for a few minutes. Repeat until the walking belt is properly tightened
If the drive belt continues to turn but the front roller stalls, you may have a broken front roller pulley. If this is the problem, you will notice it because the plastic will usually make a loud squealing sound on the metal front roller. The front roller assembly will need to be replaced and the drive belt must be replaced also. We suggest replacing the drive belt as well because it is a low cost item and will most likely, have suffered unusual wear from the problem. Another possibility is that the drive belt has worn down. In some cases, belt dressing may help correct the problem. If not, the drive belt must be replaced.

If the walking belt slips when walked on, first remove the key and UNPLUG THE POWER CORD. Using the hex key, turn both rear roller bolts clockwise, 1/4 of a turn. When the walking belt is correctly tightened, you should be able to lift each edge of the walking belt 2 to 3 inches above the walking platform. Be careful to keep the walking belt centered. Then, plug in the power cord, insert the key, and carefully walk on the treadmill for a few minutes. Repeat until the walking belt is properly tightened. Now if this does not solve this problem then check the drive belt and adjust accordingly, also reverse the process of the above mentioned

Yes, take it back or request a service person to look at it.

You need to replace the walking belt.