Life Fitness treadmill remains to be one of the most popular fitness equipment, whether used in the gym or at home.
Like any other complicated machines, Life Fitness products can malfunction in a variety of ways. If your Life Fitness treadmill doesn’t start, you will need to troubleshoot the possible cause.
Let’s review the most troubleshooting methods to follow in order to find out why your Life Fitness treadmill won’t turn on before calling the manufacturer or a repair person.
Without further ado, let’s get right into it!
Why Is My Life Fitness Tread Not Working?

There are multiple reasons for why a Life Fitness Treadmill won’t turn on and stop unexpectedly.
The problem might be something you can fix yourself, ranging from simple possibilities such as power supply problems, or the installation does not meet Life Fitness electrical power requirements. To more complex possibilities, such as motor controller problems.
The following troubleshooting guides will help you identify and fix your Life Fitness treadmill problem.
Life Fitness Treadmill Won’t Turn On – Troubleshooting Guides
1. Check the outlet
Always check if your power cable is connected properly to the outlet and your treadmill.
A Life Fitness treadmill will not turn on if there is a loose connection. The loose connection usually occurs if the power cable is not properly plugged into an electric outlet or the power cable is not properly connected to the power brick.
Make sure the electrical outlet has power by plugging a small appliance into it to see if it works.
If the appliance doesn’t power, reset the house circuit breaker to restore power to the outlet.
If the Tread is still not receiving power, plug the treadmill to another outlet. Make sure not to use a power strip, power adaptor, or an extension cord.
Next, make sure that your Life Fitness tread is plugged into an outlet that meets its power requirements.
The power requirements are: 120V, 60Hz, 12A dedicated circuit that is used for a single appliance.
Also, ensure that the Tread is not plugged into a GFCI outlet.
2. Check the power cord

If the electrical outlet works fine and the outlet meets the power requirements of your tread, unplug and check the power cord for damage.
Make sure the cord is connected properly to both the electrical outlet and the Tread’s deck.
Next, check all wires between the power cord connection and the motor control board. Reconnect any loose wires and repair any broken ones.
If the cord has been damaged then you may need to replace it with a new one.
3. Check the power switch
If your Life Fitness Tread is not receiving power, check if the power switch was tripped.
If so, Life Fitness advises to wait five minutes and then press the switch back to the On position.
Next, through the use of a multimeter, check the continuity of the power switch.
Replace the power switch if the meter measures no continuity through the power switch with the power switch turned on.
Turn on Life Fitness treadmill and check if it works. If the tread still doesn’t run, move to the next troubleshooting step.
4. Check the motor board
If the console lights up, but the tread won’t start, then you need to inspect the motor controller board. Loose wires under the motor hood or in the console can also cause your treadmill not to start.
Therefore, you need to remove the motor cover. Look around for any obvious damage, burns, loose or broken wires.
Next, use a multimeter to see if you are getting the correct voltage coming from the console to the motor control board.
If you get 120VAC from the console and from the board, the board is working fine.
However, if you have voltage from the console but not from the board, then you have an issue with the controller board.

Check all wires between the power cord connection and the motor control board. Reconnect any loose wires and repair any broken wires.
If wiring that connects power to the motor control board is okay, check the wiring between the motor control board and the console display. Replace any loose wires and repair any broken wires.
If the wires between the control board and the display are okay, then you either have a bad motor control board or a failed console display that is preventing the machine from powering up.
Final Tip
If none of the above fixes work, then you need to contact the Technical Support Team of your treadmill. They will help you diagnose the problem and offer solutions.
If your treadmill is still under warranty, the manufacturer may cover the cost to repair your machine.
However, if you attempt to fix the tread yourself while it is under warranty, then you may void the warranty.
In this case, only perform the troubleshooting tips recommended by your manufacturer.
Conclusion
If your Life Fitness treadmill won’t turn on, there are a few things you can do to fix it.
First of all, make sure that the machine is properly plugged into a power source that meets Life Fitness electrical power requirements.
Check the power cord to see if it is connected properly to both the electrical outlet and the Tread’s deck.
Also ensure the safety key is connected properly while the Tread is in use.
You may need to replace the motor controller board if it gets enough power but doesn’t work appropriately.