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The speed on the treadmill keeps going up and down on its own. What would be the cause of this? It happens on the manual portion along with the programmed portion.

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Please RUN the software calibration for easy diagnostic and fix it.
or read you owner manual and follow the steps
God bless you

Posted on Nov 25, 2013

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Treadmill shuts down once you speed up


Since you didn't say the manufacture or model I will just give general information that can cause problem. Most treadmills use a DC motor feed back system even through its plugged into an AC outlet. This allows user to control speed. As speed increases the unit draws a higher voltage DC which intern causes a higher amperage in your AC. So lets say yours is a 15 or 20 amp at 110v as you increase that speed it draws more ampage it causes more heat if the heat gets to hot it will shut down the unit. What can cause this if you use an extension cord of the wrong gage. If cord feels hot to or warm its to small. Friction between the belt and the deck. Their are waxes you can blow under the belt which reduce friction see the manufacters instruction. This will lower amp draw and keep unit running cooler. Weight of person has a very high effect on amp draw. Most treadmills have a weight limit. The higher the incline while jogging the more impact on belt and deck makes motor work harder causing unit to heat up. In otherwords anything that increases friction increases heat. You didn't say if new or older unit. Electronics wear with age and break down again mostly due to heat. So keep unit away from heat sources. Hope this helps.

Dec 19, 2015 | Exercise & Fitness

1 Answer

While running on tempo tredmill it speeds up by itself then speed comes back down. This keeps happening. it goes faster than someone can run butthe speedo never changes


Please Run the software calibration for easy diagnostic and fix it.
go under the HOOD covert Motor, and follow the steps
God bless you

Oct 07, 2013 | Exercise & Fitness

1 Answer

Incline reads 0.0 but is not all the way down


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

Dec 04, 2011 | Nordic Track NordicTrack Treadmill, A2550

1 Answer

My treadmill work fine when i turn it on but when i step on it the blet. slows down to crawl.


What make/model is the treadmill? What speed does this behavior occur? Does the walking belt slip, while the motor and rollers continue to turn? If the walking belt is slipping then the motor belt needs to be tightened. If the walking belt slows with your weight on it, does this happen at 1-3 mph and still occur at 4-5 mph? It could be your body weight causing it to slowdown, try to increase the speed to 4 or 5 and see if it still happens. If so, is the treadmill rated for your body weight? Please be more specific.

Feb 08, 2011 | Exercise & Fitness

1 Answer

Err 22 keeps displaying on control panel on one treadmill and on another err45 ..... Any answers? Plus some treadmills same to just trip, have to keep switch them back on!


Error 22 indicates that the drive motor (running belt) has been instructed to start, by either manual or program control, and the monitoring system has not received any response from the speed sensing system indicating that the drive motor has started
Possible Causes 1. The treadmill utilizes an optical (infrared) speed sensor and the line of sight between the speed sensor and the speed sensor target is obstructed. 2. Drive motor brushes are bad. 3. The speed sensor position relative to the speed sensor target is incorrect. 4. The speed sensor potentiometer adjustment is incorrect (when equipped). 5. The speed sensor is inoperative. 6. The lower PCA is bad. 7. The lower PCA to upper PCA interconnect cable is bad. 8. The upper PCA is bad
Error 45 :The lift control system has detected that the lift is moving in the opposite direction of the issued
Possible Causes 1. Lift Motor hysteresis. 2. Bad lower PCA
Possible Remedies 1. This error would typically happen when the lift was already in motion (typically downward) when a lift command in the opposite direction (lift up) was issued. Some motors exhibited a very long turn around time and the lift motor would still be moving in the original direction (downward) while the control system was attempting to move the lift in the opposite direction. If the error 45 condition is persistent, replace the lift motor. 2. This is a very rare condition, if the lift moves in the opposite direction of the issued lift command, replace the lower PCA lift command.

Feb 02, 2010 | Precor C954i Commercial Treadmill

1 Answer

What does code 22 mean?


Error 22 - No Motor Pulses at Start Up
Description
Error 22 indicates that the drive motor (running belt) has been instructed to start, by either
manual or program control, and the monitoring system has not received any response from the
speed sensing system indicating that the drive motor has started.
Possible Causes
1. The treadmill utilizes an optical (infrared) speed sensor and the line of sight between the
speed sensor and the speed sensor target is obstructed.
2. Drive motor brushes are bad.
3. The speed sensor position relative to the speed sensor target is incorrect.
4. The speed sensor potentiometer adjustment is incorrect (when equipped).
5. The speed sensor is inoperative.
6. The lower PCA is bad.
7. The lower PCA to upper PCA interconnect cable is bad.
8. The upper PCA is bad

Jan 18, 2010 | Precor 9.21 Treadmill

1 Answer

Have a proform pro from730cs treadmill every time I walk on it the tread miill shuts off afther 15 min I resett it still happens somtime when I walk thr @speed@will go down 1 then go back to it's...


The walkbelt is either worn out or has a lack of lubrication between the walkbelt and deck. Either condition causes too much friction between the belt and deck causing the motor to overheat. Do not use silicone or unapproved lubricants as they will deteriorate the walkbelt.

Jan 16, 2010 | Exercise & Fitness

2 Answers

MESSAGE "ERROR SPEED STALL" KEEPS COMING UP


returned the machine and got our money back, thanks.

Jun 20, 2009 | Bowflex Treadmill Series 7

1 Answer

Manual Treadmills vs. Motorized Treadmills


Treadmills come in two basic varieties, just like lawnmowers: manual and motorized. But, unlike a lawnmower, you will generally get a better workout from a motorized treadmill. Manual Treadmills - Getting Going On a manual treadmill, the action of your feet against the deck moves the belt. Pros * You provide all of the motive power and exercise your lower body. Cons * It can be difficult to get the belt moving intially. That straining against the belt can stress your joints. * You may have to raise the incline of the treadmill significantly to make it easy enough to get the belt moving. * Once the belt is moving, however, you would have to stop and get off to change the incline, so you are stuck with one incline level during each workout. Motorized Treadmill Advantages * The belt is moved by the motor, you don't have to strain to start it. * On many treadmills, you can adjust the speed and incline while you are still walking or running. On others, you may have to get off and adjust the incline manually, but you just have to turn on the treadmill to start the belt again. Manual Treadmills - Speed With a manual treadmill, you go only as fast as you push yourself. If you slow, it slows. If you stop, it stops. Motorized Treadmill Speed and Workouts The speed is adjustable and many motorized treadmills have workout programs that adjust the speed to give you a varied workout. This pushes you to go faster. The constantly moving belt of a motorized treadmill motivates you to keep up. Costs Manual treadmills are relatively inexpensive, in the $100-200 US range. Motorized treadmills for home use cost from $750-$5000, and generally the more you pay, the better you get. Most motorized treadmills under $1000 have underpowered motors and are less sturdy and have fewer options for adjusting the incline, programmed workouts, etc.

Dec 01, 2008 | Endurance TF3i Folding Treadmill

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