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Ls treadmill wont start

Keep getting lube belt on start up. treadmill belt does not start when lube belt reset. speed sensor and front roller already replaced and did not fix problem..

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If the steps to reset the UCB and MCB when the "warning phrase" phrase appears is being done correctly, then the issue is with either of the two boards.

The UCB (upper control board) is in the console unit and is most likely not the issue, its the information center communicating the key controls to the MCB (Motor control board) under the motor hood. The MCB is a common issue on many machines. Check all the cables and connections for any burning on the cable ends or connections, this would be an issue with "dirty" power - bad power source.

Many MCB issues come from not vac out the motor hood often enough and dust shorts the board out. Also, machine should not be run through an extension cord or off an NON-dedicated outlet. Both are associated with "dirty" power.

The MCB is similar to the brain of the machine. The front roller and speed sensor work together to calibrate speed in relation to what the motor believes it is operating at. If there is a contridiction the MCB will either produce an error code on the display screen or adjust the speed of the motor to the correct speed. IF the roller is operating faster or driving the motor faster then the motor want to operate at it will usually trip an "over speed" error.

The issue is probably with the MCB, not a cheap a part. Try and find your machine on for a price qoute or have alocal service tech from the store you bought it from come out and fix it.

Worst case scenerio is you replace all the expensive parts and find out it the data cable from the UCB ot the UCB or the power cord. Most companies supply the appropriate numbers from their tech website
to be determined with a multimeter.

Posted on Jan 05, 2013


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SOURCE: Lube Belt displays on digital display how to reset

The message "LUBE" or "LUBE BELT" scrolls across the console display window. The treadmill will not operate while the message is displayed.
Reset the console by pressing the STOP and SPEED “+” or “^” for five seconds.

Posted on Jul 29, 2010

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I keep getting a speed error message when I start the belt

Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

Precor Error LS, Speed Sensor Signal Missing Probable Cause 1. Intermittent or open connection of the speed sensor (reed switch) wiring.
2. Reed switch is defective or has intermittent connection.
3. Drive motor brushes are bad.
4. Lower PCA is bad.
Corrective Action
  1. Inspect the speed sensor (reed switch) wiring for damage or poor connection to the lower PCA. Replace damaged wiring or reset connection as necessary.
  2. Using an ohm meter, test the reed switch while rotating the drive pulley. The reed switch will close when the magnet passes in front of it.
  3. Inspect the drive motor brushes and replace if necessary.
  4. Test unit with a known good lower PCA. Replace lower PCA if necessary.

Precor Error Code LS

Dec 08, 2014 | Precor Exercise & Fitness

1 Answer

Life fitness 9500hr treadmill belt not moving and speed sensor error comes up on the screen

see the video and lube to the rollers bearing front+back .
and Run the calibration software for easy diagnostic for s. sensor
God bless you

Oct 17, 2013 | Life Fitness 9500hr Next Generation next...

1 Answer

Speed sensor error appears in the screen at start up and the belt doesn't move

1d2675cf-e1a8-4877-b5f9-c3ade6debdfc.gifsee the video attached. lube the rollers bearing too front+back
However RuN THE software calibration for easy diagnostic and fix it. see the diagram attached for s.sensor.
God bless you

Oct 17, 2013 | Life Fitness Exercise & Fitness

1 Answer

Proform_xp_800_vp My treadmill just starting

13c5a4bc-2f6e-452d-8456-f22742c60fa8.gifsee the video and lube, please do the same with rollers bearing front+back. Test the drive belt motor, and replace the belt if necessary
If after you lube the problem remain, is TIME to replace the DECK belt.
God bless you

Aug 02, 2013 | Exercise & Fitness

1 Answer

Stex treadmill about error 2

adjust the Speed sensor, see the diagram, clean it, test for open or faulty, and tight the connector very well.
Lube the deck belt, see the video, lube the rollers bearing front+back too , test the drive belt motor and replace the belt if necessary. God bless you
However you must try to Run the software calibration after your fix it.4d80cf2e-89d9-4476-902b-88e5991886e8.gif

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1 Answer

How do I fix my noisy treadmill?

you must LUBE the deck belt, and lube the another parts, like roller bearing front and rear +drive belt maybe need replace. see the video attached.

Jun 08, 2013 | Proform 785 CS Personal Trainer Treadmill

1 Answer

My Sole f83 will not start. initially Fans run, can raise/lower. will act noemal until motor should run/doesn't. then raise/lower function stops. If I try to use speed buttons LS light shows. moto

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

Nov 15, 2012 | NRS Sole F83 Treadmill

1 Answer

My Reebok 9500 ES Treadmill is making a very loud klunking sound from the rear roller - right side. The sound is not constant - it comes and goes. Doesn't seem to matter where I position myself on the...

Treadmill Maintenance How To Lubricate Treadmill Belt
Please lube very well Roller front and back with WD-40
if the problem persist replace Roller(s).
LUBE the deck belt as show in the video.
cell+whatsApp: +50588611441

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2 Answers

Screen states Lube Belt , do not have user Manual , Where are lubrication points and what type "lube" can I use ?


It is necessary to lubricate your treadmill running deck every six months or 150 miles to maintain optimal performance. Once the treadmill reaches 150 miles, the console will display the message "LUBE" or "LUBE BELT". The treadmill will not operate while the message is showing. Hold Stop for 5 seconds to suspend message for 5 miles. Your treadmill came with a bottle of lubricant which can be used for two applications. If you need lubricant, contact Horizon Fitness. Only use lubricant provided by Horizon Fitness.

• Turn off the treadmill with the on/off switch, then unplug the power

cord at the wall outlet.

• Loosen both the rear roller bolts. (For best results, place two removable

marks on both sides of the frame and note roller position). Once the

belt is loosened, take the bottle of lubricant and apply it to the entire

top surface of the running deck. Tighten both rear roller bolts

(matching up the marks for proper position) to original position. After

you have applied lubricant, plug in the power cord, insert the safety

key, start the treadmill and walk on the belt for two minutes to spread

the lubricant.

• Lubricate the air shocks with Teflon based spray.
• Once lubrication is complete, reset the console by pressing and holding 'STOP' and Speed '+' buttons for 5 seconds.

Dec 26, 2010 | Horizon T91 Treadmill

1 Answer

Pro Form Treadmill 625 EX Wide Trac

1. You may have a worn belt and deck problem ( #1 problem on treadmills ). Test by the following procedure:
a) without the power on stand on the walking belt
b) push the belt in the direction it normally turns
c) if the belt is very difficult to turn (on most treadmill) this means that you have high belt/deck friction.

You must physically inspect the belt and deck. The deck should be smooth. The belt should have a consistent feel from side to side (a belt can be worn out without any sensory signs of a problem). If you feel deep grooves in the deck or uneven wear on the underside of the belt, part replacement is necessary. Continued use of your treadmill may damage expensive electrical components. If their is no signs of excessive wear then the next step is to lubricate the deck follow this procedure:

Before applying lubricant, the belt must have the tension reduced and cleaned deck. Loosen the tension roller by following the instructions in your owner’s manual. Do not loosen the bolts in the tension roller too far or the bolts will come out of the roller shaft. This step may not be necessary for your treadmill model or belt and deck condition.
Contaminants are the worst enemy of your belt and deck. Some treadmills may have an excessive accumulation of dirt and contaminants. If these are trapped during the belt lube process, significant damage will occur. Lift the belt and slide a moist towel between belt and deck, slide the towel the length of the unit to catch the contaminants do this a number of times inspect towel and need be use a fresh towel and repeat cleaning let dry then apply the lube in the center upper third of deck then start unit and walk on it @ 1-2mph for about 5 min. You may purchase the lube from National Gym Supply @ Part# TM001 or call them @ 1-800-496-7278 their on the west coast. At this point I believe your problem should be resolved if the above procedures have taken care of problem take a look at the next step, as mentioned the #1 cause of treadmill failure is lack of maintenance of the belt and deck.

On occasion, you may have already damaged the DC board if you have high belt/deck friction. If the belt walks freely, you have a different problem.

2. If it passes the belt/deck checks, you may have a DC board output problem. If the belt tests ok and you have a speed variation, try this test:
  1. Set the speed to 2.5 MPH. Let the treadmill run without anyone on the belt. Check to see if the speed is constant or if there is a variation.
  2. If there is no variation, step on the belt. If the speed slows down or speeds up, you may have an output problem on the DC board. This is the board that connects directly to the motor. Check the speed sensor if it is a magnetic sensor unit ( Under motor shroud usually attached on the left hand side of frame with 1/8' clearance between sensor and front roller pulley) you can test continuity with a multi meter or replace with a new part to test. Many times passing a kitchen magnet in front of the signal will make a speed display on the console if the magnetic sensor is good.

May 15, 2010 | Proform Sport 1000 Folding Treadmill...

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