My treadmill won't go down the platform. How to lower it?Please help

The manual says you need to be able to lift 40 lbs safely to raise of lower the treadmill running platform, I I would guess twice that to physically lift it. The weight limit for a person using it is 250 lbs

https://www.manualslib.com/manual/502826/Lifestyler-Expance-800.html#manual

..

Hold down the "Stop" button and the "Speed" up button. Insert the safety key into the console then release the "Stop" and "Speed" buttons. Press the "Stop" button then press either the "Incline" up or down button. Wait while the treadmill raises then lowers the incline ramp.

please see the video and proceed according, LUBE the rollers bearing very IMPORTANT!
However , if the problem persist your must test a) main motor+belt
b) main control motor board see the block diagram attached.
God bless you

LUBE or wax the deck belt, this happen because you do not have schedule maintenance according with the owner manual. The machine shut down for autoprotection in electronic system Do it NOW.
2) LUBe the rollers bearint too with WD-40 only for rollers
3) Test the drive belt motor, for worn or cracking belt, replace or adjust it
4) Test the input voltage motor, if there are the motor need repair, see my personal TIPS for troubelshooting help.
5) Test the output voltage board, for input voltage motor, if there are NOT the board is faulty.
God bless you

Please RUN The software calibration for diagnose, troubleshooting and fix it.
download your inst.manual from www.iconservice.com or www.fitness.manualsonline.com and proceed according

God bless you

1) Lube the elevation motor, see the diagram, parts gear + shift
2) adjust the POT, for a little and see if there are better improve.
3) RUN the software calibration for diagnose, troubleshooting, fix it.
God bless you

I am having the exact same problem with my ProForm 615 treadmill. Spent over an hour trying to lower it.

Renee, Here is how to recalibrate the incline motor. Read all of it It will be good to keep.
Plug in your treadmill, do not stand on the walking belt. Hold down the "Stop" and "Speed +" key and insert the safety key or magnet, let go of the two keys. Now press "Stop" key once. This puts you into the level 2 of calibration. Press the "Speed +" key slowly until you see 85 on the console, (at this point the display is going to show the percentage of motor usage and also the actual walking belt speed) at 85% motor usage your top speed should be between 10 and 10.5 MPH or (of 12 and 12.5) depending on the treadmill. You must know your treadmills top speed. (Important the motor may be damaged if you set the maximum speed higher than the maximum speed that your treadmill is made for). If the speed is higher than 10.5 or 12.5 then you need to turn the potentiometer down to the correct level. If the speed it to low you need to turn the potentiometer higher. Once the speed is correct you are done calibrating the speed. Press the (-) speed key to lower the percentage to (0). Next press the incline (+) button, this will make the incline motor go all the way to the maximum incline and come all the way down to the level position. Then remove the safety key and the treadmill will reset into the normal manual mode, when you re-insert the safety key. Matt

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

Take the cover off and inspect the wiring. Make sure all the wires from the incline motor are connected.
If all the wires are connected and everything looks OK, try the incline again.
There are only 3 wires on the incline motor, red, white and black. This machine does not rely on any electronics to operate the incline. We know the motor works, because it will go up..Likely the switch in the console is defective.
To lower the incline, reverse the black and red wires, that will make up go down and vice versa.. If that doesn't work, the motor is likely defective.
The incline motor is available, around $110. To order find the model number on the frame of the treadmill and call the service number found there. Have your model number ready (starts with "P").
The console is no longer available.

if that is where it catches then that is how far it goes there is no adjustments. Make sure the incline is the whole way down