I have a proform j8li treadmill, all 4 led lights work properly. Console lights all seem to work. Incline works fine but no belt motor function

If you've already replaced the lift motor on your Proform 400s Treadmill and the incline still won't work properly, there may be other underlying issues that need to be addressed. Here are a few troubleshooting steps you can try:
Check the wiring: Ensure that all the wiring connections related to the incline mechanism are secure and properly connected. Loose or damaged wiring can cause issues with the incline functionality.
Inspect the incline motor and gears: Examine the incline motor and gears for any signs of damage, misalignment, or obstruction. Ensure that the gears are engaging properly and that there are no obstructions preventing the incline from moving up and down smoothly.
Reset the treadmill: Perform a full system reset on your treadmill. This can often resolve minor software glitches or issues that may be affecting the incline function. Consult your treadmill's user manual for instructions on how to perform a reset.
Contact customer support: If you have followed the above steps and the issue persists, it is recommended to reach out to the customer support of Proform or the retailer from whom you purchased the treadmill. They should be able to provide further troubleshooting guidance or arrange for professional repair assistance if needed.
Remember to exercise caution when working with electrical components or performing any repairs on your treadmill. If you are unsure or uncomfortable with the process, it is advisable to seek assistance from a qualified technician or the manufacturer's customer support to ensure proper diagnosis and resolution of the issue.

Hi sir
1) Please open the covert where the main motor is, disconnect
the connector from the Incline motor.
2) Turn On the treadmill, and see what happen.
3) If the problem does Not appear , is indication the controller motor board is defective.
Since the controller motor board has 3 power supply: 1) Console 2) Main Motor 3) Incline Motor.


LED Blink Patterns on the Control Board Treadmill
Blessing
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see the video and lube .Of course you must do the same thign with rollers bearing front +back. Test the drive belt motor, and replace the belt if necessary.
However if after you lube the problem remain, is TIME to replace the deck belt by new ones.
You must test the control board, measure the input voltage for motor, if there are voltage the motor is faulty.
measure the output from control board if there are NOT voltage for input voltage motor, the control board is faulty , replace see the block diagram
God bless you

adjust the reed switch, see the diagram attached. clean it. test for open or faulty. Tight the connector..God bless you

please LUBE the deck belt+rollers bearing. see the video attached.
If the problem persist TIME to replace the old deck belt board.
This happen because the lack of maintenance schedule in LUBE.
God bless you

note:forget it the LEDS troubleshooting, you must see the functions ONLY when there are electronic problem with the electronic board+sensor

1) i recommend that you lube very well deck belt + rollers bearing

2) see the videos.

3) see the block

4) Try to RUN the software calibration, for troubleshooting.

5) measure the input voltage motor, if there are the motor need repair.
6) Measure the output voltage board, for input voltage board, if there are NOT, the board is faulty.

Dear Sir:1) Lube the deck belt, maybe you have a deck belt worn, and need replace.2) Test the input voltage for main motor, if there are the motor need repair or replace.3) Test the output voltage from main board for input voltage motor, if there are NOT, the board is faulty.4) See the drive belt and replace it.See my personal tips for HELPsincerely. God bless you

ProForm Treadmills have a reset procedure for the incline function. With the key inserted in the console, activate the incline; while the incline is changing, remove the key. Wait 30 seconds, then replace the key. The incline should to maximum, then to minimum, resetting its limits. It worked for mine just 10 minutes ago; the procedure is in the manual if you have it. Good luck!

ProForm Treadmills have a reset procedure for the incline function. With the key inserted in the console, activate the incline; while the incline is changing, remove the key. Wait 30 seconds, then replace the key. The incline should to maximum, then to minimum, resetting its limits. It worked for mine just 10 minutes ago; the procedure is in the manual if you have it. Good luck!

Your problem is the motor controller. It usually burns out sometime after the 8 year mark if you don't replace the belt routinely. You'd have to replace the belt and the controller. Parts for that would be about $300.