Question about Proform Exercise & Fitness

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I have a model 297980 J8 proform treadmill. when I first start it up without the safety key in it, the treadmill runs at full speed for about 2 minuets. After that it slows down and stops. The speed is set at zero. When you set the speed of the treadmill it trys to run but just won't move.

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You have to put the safety key in if you want to select speed/incline or predefined programs.
It starts and runs at full speed on that occasion because it's part of the maintenance process, that lubricates the inner rollers so that it will continue to work perfectly for as long as possible.

Posted on May 01, 2010

  • draday12 Jul 08, 2011

    That is really nice to know, but what if you still canT get the treadmill to work after all that. It is still not moving. The incline works, but not the speed. I have the key in and nothing.

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Posted on Jan 02, 2017

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Incline problem


All icon models are the same. The easiest way to incline calibration is to start the treadmill, push the incline up button and then after you release the button, remove the safety key. Replace the safety key and the treadmill should calibrate.
If that doesn't work, press the stop and speed up buttons and hold, then place the safety key in place. This will bring you to the speed/incline calibration. Press stop again. now press incline up. This will run the incline calibration.
You may need to remove the hood and manually with a drill lower the motor. Using a slot screwdriver bit, lower the motor a bout 50 turns and then try the procedure above again if necessary.

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My proform j8 speed up button does not increase speed


1) adjust the speed sensor, test it, clean it, and tight the connector very well. se the diagram
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1 Answer

My proform treadmill turns on and the inlcline works however the belt does not move. Any suggestions?


Enter calibration mode and do a calibration first.
Press the stop & speed up key, insert the safety key/magnet. Press stop 1 more time. Press speed up, the speed display should start to increase in value. By 30-40, the motor should be running. If not, you either need a motor or motor controller PCB. What model is the treadmill?? PCTL???

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1 Answer

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ICON CALIBRATION INSTRUCTIONS- INCLINE
1) Press the Stop and the Speed Up keys down while inserting the safety key. If this doesn’t work, click on the help topic entitled “Alternate Calibration Codes” for key sequence instructions to enter calibration.
2) Press the Stop key one time. The Time window should read EP:2P. Some newer models may also say FP, Pass, or the like. This means that it passes the EPROM test.
3) Press either incline key and the incline will calibrate automatically.
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1 Answer

I have a proform 785..the problem is the speed and incline decreases all of a sudden like within a minute...i raised the speed to 4 and it dropped to 2 within 1 min and same thing with the incline it...


Unplug unit remove motor shroud then start calibration procedure.
Press the Stop and the Speed Up keys down while inserting the safety key. If you cannot get into calibration then upper console needs to be replaced.
Press the Stop key one time. The Time window should read EP:2P. Some newer models may also say FP, Pass, or the like. This means that it passes the EPROM test. At this point if it show 2F FF or Fail then upper console needs to be replaced.
Press either incline key and the incline will calibrate automatically
BE CAREFUL, THE TREADMILL WILL RUN AT FULL SPEED IN THIS NEXT MODE! DO NOT STAND ON WALKING BELT.
Press the Speed Up key and hold it down until 85 is shown in the Distance window (some models may show the 85 number in another window).
If the top speed of the treadmill does not match the displayed speed on the computer console, adjust the max speed potentiometer (pot) on the motor control board. This is the board that the red and black motor wires connect directly into in the motor area. The Max Speed pot is clearly labeled.
The max speed potentiometer is a small square with a mobile center and is located in one corner of the board and is labeled MAX SPD. It is near the harness that carries the speed signal labeled H,W,L. Using a small insulated screwdriver adjust this potentiometer clockwise to speed up and counter-clockwise to slow down the max speed of the treadmill. A tiny turn of this potentiometer will make a big difference in speed so be careful when making adjustments.
It is not important to get the speed set exactly at the max speed of the treadmill but do make sure to get the speed within .2 MPH of the max speed of the treadmill. For instance if the max speed of the treadmill is 10 MPH, make sure to have the speed set between 9.8 MPH and 10.2 MPH. Some models have a 12 MPH top speed, so please check your manual if you aren’t sure.
After completing calibration of the speed, press the Speed Down key. The treadmill will automatically return to 0 MPH. Please allow the unit to stop completely before continuing.
Press the Stop key once and remove the safety key.

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1 Answer

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Walking Belt is Worn: The only certain way to test for a worn walking belt is to take a DC amp draw (if you have a DC treadmill) or an AC draw (for AC). Trying to look at the belt or a feel test is highly unreliable. Better tests, if you lack a DC ammeter (they are expensive for a good one), are a coast test or an incline test. The coast test is to get on the treadmill as the lowest incline setting and walk on the treadmill at 3 MPH. Pull the safety key and it should take you 2-3 full steps to stop (this is a general rule…some like a few Tunturi models stop on a dime even with a healthy belt but for most models, this tests works well upon). Fewer steps indicate high friction. The incline test is to put the treadmill at max incline and walk on it at 3 MPH. If the treadmill operates normally at max incline but bogs down at minimum incline, replace the walking belt. Gravity takes over for the drive system eliminating much of the friction problem. On some heavily worn walking belts, this test will not eliminate the problem. Go to your local hard ware store and purchase silicone spray. Apply Lubricant by lift one side of the running belt spray contents length wise starting at motor shroud to the back end repeat this process on the other side. If this unit bogs down again then you will have replace the running belt and possibly the deck

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