I set the speed at 5.5 but it wanders while I am running even with no one on the treadmill you can hear the motor slow and speed up.

There could be a few possible reasons for your Trojan Runx treadmill to have this issue:

1. Belt tension: The treadmill belt may not be tight enough, causing it to slip and lose speed. You can adjust the belt tension by using an Allen wrench to tighten the bolts at the back of the treadmill.
2. Motor: The motor may be overheating and shutting off, causing the treadmill to slow down. You can check the motor by opening up the motor cover and looking for any signs of burning or overheating.
3. Motor brushes: The motor brushes may be worn out and need replacing. This can cause the motor to run slower and eventually shut off.
4. Power supply: The power supply to the treadmill may be insufficient, causing it to lose speed. Make sure the treadmill is plugged into a dedicated circuit and not sharing power with other appliances.

If you're unsure about how to diagnose or fix any of these issues, it's recommended to contact a qualified technician or the manufacturer for assistance.

Hi,

if the machine slows down when you get on it, there might be a motor issue or problem with a bad circuit within the treadmill.

Thank you.

Typically when this occurs, it is an indication of a short circuit in the motor controller board. To test to make sure the problem is in the board


1) Unplug the treadmill from the wall.

2) Remove the motor hood.

3) Unplug the speed wires from the board. On many boards, you will have 2 to 3 wires that control speed and many are labeled H, W, and L. If you cannot find the speed wires, do not guess, contact us with your make and model number and we will try to help you with the wiring.

4) Return the treadmill to a usable position once the speed wires are disconnected and plug the treadmill back in.

5) If the treadmill begins to run at full speed, the motor control has failed and requires replacement.

6) If the treadmill does not run at full speed you could have a speed input problem, wiring problem, or another short circuit.

For any further troubleshooting questions please do not hesitate to contact us, our number is 888-713-2880 or check out our Tech Support Center online

http://www.sportsmith.net/supportsearch.aspx

Always hear to help, SportSmith

Run the utility software calibration for easy diagnostic and fix it.
Go under the HOOD cover motor, and follow the steps

God bless you

Dear Sir:
Please RUN THE software calibration for easy diagnose and troubleshooting, and adjust the speed sensor see the diagram attached.
And you will see the problem with the motor, possible lack of LUBE, and maintenance.Now you test the motor for lubrication and maintenance too.

Come again if you need assistance.

http://www.youtube.com/watch?v=zXeHMWTcLUY&feature=related
Watch this video.
1) observe if the main motor is running, be carefull with you hands.

2) See the drive belt motor is o.k or is broken and replace+ or flywheel is loosen or broken too.

3) Test if the motor is turning with good speed adjust speed. Test the speed sensor.
http://www.youtube.com/watch?v=23ZgWaVEQjA
http://www.youtube.com/watch?v=-oeXTKqWECw&feature=related

What make/model is the treadmill? What speed does this behavior occur? Does the walking belt slip, while the motor and rollers continue to turn? If the walking belt is slipping then the motor belt needs to be tightened. If the walking belt slows with your weight on it, does this happen at 1-3 mph and still occur at 4-5 mph? It could be your body weight causing it to slowdown, try to increase the speed to 4 or 5 and see if it still happens. If so, is the treadmill rated for your body weight? Please be more specific.

Hello,

When the speed goes to 0, does the motor stop or can you still hear the motor running like normal?

If you need further help, I’m available over the phone at https://www.6ya.com/expert/matt_8dbc24bf722649ac

Try looking for a problem in the power.if that doesnt work,send it to a technician or if you had a warranty on it even better.