I've got a Pro-Form 680 LT Treadmill. Right out of the box, it has the symptoms of being in Demo Mode. You place the key on the Console and it goes to zero but then every button you push causes three beeps to occur and does nothing. If you remove the key it goes back into Demo mode. Is there a fix for the controller or is it a problem elsewhere during the installation?

https://www.manualslib.com/manual/583110/Nordictrack-Commerical-2450-Treadmill.html?page=27

Quoting from manual above (may be similar model if not the same.)

7. Turn on or turn off the display demo mode.
The console features a display demo mode,
designed to be used if the treadmill is displayed
in a store. While the demo mode is turned on, the
console will function normally when you plug in
the power cord, press the power switch into the
reset position, and insert the key into the console.
However, when you remove the key, the screen will
show a demo presentation.
To turn on or turn off the display demo mode, first
touch the Demo Mode button. Next, touch the On
checkbox or the Off checkbox.

follow this steps and fix it. God bless you

1.

• 1

Unplug the treadmill. Locate the console key and place the safety or reset key into the treadmill console. Replace any parts that need replacing, or is large enough to trigger with a pencil eraser or Q-tip. Plug the treadmill plug back into the wall. Use the Q-tip to press the reset button. It may be necessary to hold the reset button down for a few seconds. "CL11" will appear in the display of the treadmill.

• 3

Press the reset button one more time with the Q-tip. "CL21" should appear on the screen. Press the enter key. The display will change again and show "CL22." Keep pressing the enter key until the numbers cycle through to the number "CL26." Press enter one more time. The letter E should appear on the display screen.

• 4

Press enter twice more. The letters "SS" should appear on the screen. When this happens, press the start/stop key. Making sure to keep well away from the tread, press enter to start the treadmill. The treadmill will start on its own. The treadmill will stop on its own after a few seconds. When it stops, press the power key two times. Remove the safety key and put in a safe place. Your treadmill is reset.move on to the next step.

• 2

Locate the reset switch on the underside of the treadmill console. Usually the button

When in Demo Mode, the console will go through a repeating lighting pattern. This mode will only become active when the treadmill is plugged in, the main on/off switch is turned on, and the safety key is not inserted into the console.
The Demo Mode was added to attract attention to the treadmill while it is on display. By default, all treadmills with Demo Mode will come with it turned on. Demo Mode can be turned off at any time.

ethod #1 to switch from the Demo Mode:
1.the STOP button while inserting the safety key tPress and hold o enter the user information mode.
2.Look in the Calories window. When Demo Mode is active, the letter 'd' will appear.
3.Press the SPEED DOWN button to toggle the mode on and off.
4.Once the mode is set as desired, remove the safety key.
Follow the steps and fix it.
God bless you

Dear Sir:

Please adjust the reed switch, according with the diagram attached 1/8-1/4". 2) Tight the ribbon cable from keypanel (display board) 3) Tight the connector from display board vs main motor board.

Run the software calibration for reasy diagnose and troubleshooting.

See my block diagram for better undertanding. sincerely.

God bless you.

ernesto cuadra
managua, nicaragua. c.a.

Dear Sir:
Adjust the reed switch, by 1/8-1/4 see the diagram attached. 2) Tight the ribbon cables from keypanel 3) Tight the connector from display board vs main motor board.

Run the software calibration for easy diagnose and troubleshooting.

See my personal block diagram for easy understanding in troubleshooting. sincerely. God bless you.

ernesto cuadra
managua, nicaragua. c.a

Dear Sir: I will help you, please do the following step: Instructions Things You'll Need

• Power supply
• Standard screwdriver
• Batteries
• Access to local fuse or circuit breakers, if necessary

1. • 1 Check to see if the Pro-Form device is properly plugged into a working, grounded power supply if none of the console buttons are working. Turn the device on and reset local fuses or circuit breakers if necessary; reset the circuit breaker switch on the base of the unit.
     
   • 2 Turn off the fitness device and unplug from the power supply if the console only shows zeros or the console buttons are not working. Use a standard screwdriver to open the battery compartment on the underside of the console. Pull out the old batteries and recycle, if possible. Replace with new batteries, using the old batteries as a guide for the size and type of batteries needed. Place the flat end of each battery against the spring inside the battery compartment and gently push the battery into place. Close the battery compartment and restore power.
     
   • 3 Press and hold the "Stop" button if the console is only flashing repeatedly, indicating that the device is in demo mode. Insert the console key and push the "Speed Down" button to turn off the demo mode on the unit. Remove the console key.
     
   • 4 Reset the console buttons if the incline is not working properly on the machine. Insert the console key and press one of the "Incline" buttons. While the incline is in the process of changing, remove the console key. Wait two or three seconds and re-insert the console key.
     
   • 5 Remove the console key and unplug the Pro-Form device if none of the above steps are resolving the problem with the console keys. Unscrew the three screws that hold the motor hood on the front of the device and pivot the hood off the machine. Find the magnet and small reed switch on the left side of the pulley. Turn the pulley until the magnet is aligned with the reed switch and the gap between the two is approximately 1/8 inch. Reattach the hood, screw into place and turn the treadmill back on
     

If you need further assistance, please reach me.

sincerely. God bless you.

E.CUADRA
MANAGUA, NICARAGUA. C.A

Check the power cord to ensure it is connected to the power supply and the treadmill if the power does not stay on or does not turn on. Look at the circuit breaker, located near the base of the unit, to see if the circuit was tripped. Push the switch back in to reset the circuit.

2 Take the key out of the console, wait a minute and place it back in the console to resolve issues with the power turning on and off during use or if the console displays are not functioning properly.

3 Remove the console key and press the "Stop" button to turn off the "Demo" mode, which is often the default setting when the treadmill is first purchased.

4 Reset the incline by holding down the "Stop" and "Speed increase" buttons and putting in the console key. Release the buttons and then press the "Stop" button, followed by the down or up arrows for the incline. This step can be taken if errors are occurring with the incline function.

5 Turn the treadmill "Off" and unplug the unit if errors continue. Wait five minutes and then plug the unit back on, insert the console key, and turn the treadmill "On." This will reset the treadmill and should return to normal funcTION

Make sure your safety key is in place without it, it will never work.

When in Demo Mode, the console will go through a repeating lighting pattern. This

mode will only become active when the treadmill is plugged in, the main on/off switch

is turned on, and the safety key is not inserted into the console.

The Demo Mode was added to attract attention to the treadmill while it is on display. By

default, all treadmills with Demo Mode will come with it turned on. Demo Mode can be

turned off at any time.

Method #1 to switch from the Demo Mode:Press and hold the STOP button while inserting the safety key to enter the user

information mode.

Look in the Calories window. When Demo Mode is active, the letter 'd' will

appear.

Press the SPEED DOWN button to toggle the mode on and off.
Once the mode is set as desired, remove the safety key.

The walk belt should be tight (about 1.5" to 2 " when lifted at the edge), if not tighten screws at the rear. If the belt is tight enough then pull the front cover off and check the front roller. Sometimes the plastic drive pully slips on the front roller. If it only stops while you are running and is fine when you walk, i would go to the front roller.

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