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Electric motor runs but has no power.

Recently my treadmill quit. I dug into it and found that the rotor brushes were worn (one was actually worn down to a nub and the rotor was rubbing the housing a little). I found a spot to buy new brushes and put them in. They were the right size, but did not have the same fittings as the old ones, so I had to solder the lead wires to the old connector wires. After reassembly the motor does run, but it has very little power. I can stop the motor with backpressure against the rotation of the tread. I have reached the end of my limited "expertise". Can anyone tell me why this is happening and what, if anything, can be done to fix the problem?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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vpaaf
  • 115 Answers

SOURCE: 9100 life fitness treadmill

Sounds like you need a new lower board replacement. You can get that for that treadmill by call lifefitness or sportsmith.com Please rate me good

Posted on May 01, 2009

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Posted on Aug 06, 2008

magimixman
  • 11 Answers

SOURCE: When the paddle on my machine has stopped rotating it shoots the motor and guard off the top

you are letting the ice cream get to frozen, this should be a soft gelato ice cream, after 20 minutes turn off the top motor a leave on with the freezer unit still working or take out mixture put in tubs and put in freezer, the lid is designed to come off to stop the machine from breaking. Any magimix parts can be bought at http://www.magimix-spares.co.uk/

Posted on Aug 31, 2008

  • 43 Answers

SOURCE: Kitchenaid K5A doesn't turn on

i have had the same problem.Chances are that the thermister has burnt out. This is not a major problem. You can get the part at radio shack for about $1. All you need is a little screwdriver and about 10 minutes and it will be fixed. The thermister is a silver (fuse) that is located on the back of the motor the other side goes to the speed control board. Radio shack sells this thermister in a two pack put one in and tape the other in the cover for the next time this happens.The thermister should be 120v @ either 135 degrees or anything around 150 degrees. The thermister is an overheat limiter that prevents the motor from burning out.

Posted on Dec 10, 2008

  • 19 Answers

SOURCE: proform treadmill belt won't stay centered.

Adjust the tension on the right side rear using an allen wrench. Try 1/4 turn clockwise( should tighten). then run tread mill for 30 sec. to see if it centers itself. repeat again if not. if its to tight then turn the left side in a 1/4 turn

Posted on Apr 28, 2009

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I have recently installed treadmill motor brushes but now treadmill is not calibrating,calibration takes start and when calibration comes to check the slow speed it stuck there and keep calibrating it


Hi There, Please check that you have the small feedback connectors snug and proper. Some treads have them on a front or rear roller and some also have a motor feedback. Or - Try to power down and back up and try to run treadmill normally, not in cal mode, and see if the unit responds to your speed selections correctly. During "calibrations" the upper board (usually) is looking for a specific feedback signal, if it cannot be found it usually stops the tread, but in cal mode it may sit there waiting for it's feedback sweet-spot before continuing. What make, year and model of tread?

Jun 02, 2016 | Exercise & Fitness

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What is the cause for static on my treadmill?


Winter is the time of year we receive calls regarding static electricity primarily on treadmills.In fact, many of the OEMs state they expect a certain amount of static, especially during this time of year.
Listed below are some of the sources which may be responsible for the static problems:
Items that gyms have control over:
  1. Worn motor brushes
  2. Worn belt/deck
  3. Lubrication maintenance
  4. Lack of humidity in air
  5. Dusty climate
  6. Bad ground
  7. Unit should not be on carpet
Suggested Solutions:
  1. If motor brushes are worn, replace
  2. If belt/deck are worn, replace
  3. Always keep belt/deck lubricated
  4. Run humidifiers in gym
  5. Keep equipment as clean and dust free as possible
  6. Check ground of machine (power outlet, power cord, drive motor)
  7. Install a rubber treadmill mat
Items that gyms have NO control over:
  1. Dehydration of user
  2. Dry skin of user
  3. Wool or synthetic materials (nylon, spandex, polyester)
  4. Run pattern of user (shuffling feet vs. smooth stride)
  5. Shoes
Suggested Solutions:
  1. Encourage users to drink more water to avoid dehydration (which results in dry skin)
  2. Encourage users to use lotion and drink more water (less friction with hydrated skin)
  3. Suggest users to wear clothing of natural fibers (cotton)
  4. Suggest change in run pattern
  5. Encourage wearing good fitting shoes (old shoes may be too worn causing friction) and shoes without nylon mesh
It has also been recommended users spray themselves with a product such as Static Guard or mist themselves with a mixture of water and fabric softener to avoid static buildup. Allow for sprayed areas to thoroughly dry before using treadmill.

What is the cause for static on my treadmill

on Mar 10, 2015 | Exercise & Fitness

1 Answer

My A-9 KA coffee mills are working perfectly. 2003 never quits, 2006 was a royal pain and burrs/pin replaced and working perfectly. Now, I have a 2004 used for decaf, actual use from purchase about


I don't see a question in the paragraph but common problems for the A9 are 1) Shear pin 2) Motor brushes 3) slow motor operation
If shear pin then the grinders won't turn or may intermittently rotate if pin is half broken
If motor brushes worn to nubs then a fast clicking noise and sporadic on off operation followed by no operation
If motor is slow then the commutator may need cleaning requiring removing the rotor

Jul 03, 2014 | KitchenAid A-9 Electric Burr Grinder

1 Answer

Treadmill causing shocks


What is the cause for static on my treadmill? Winter is the time of year we receive calls regarding static electricity primarily on treadmills.In fact, many of the OEMs state they expect a certain amount of static, especially during this time of year.
Listed below are some of the sources which may be responsible for the static problems:
Items that gyms have control over:
  1. Worn motor brushes
  2. Worn belt/deck
  3. Lubrication maintenance
  4. Lack of humidity in air
  5. Dusty climate
  6. Bad ground
  7. Unit should not be on carpet
Suggested Solutions:
  1. If motor brushes are worn, replace
  2. If belt/deck are worn, replace
  3. Always keep belt/deck lubricated
  4. Run humidifiers in gym
  5. Keep equipment as clean and dust free as possible
  6. Check ground of machine (power outlet, power cord, drive motor)
  7. Install a rubber treadmill mat
Items that gyms have NO control over:
  1. Dehydration of user
  2. Dry skin of user
  3. Wool or synthetic materials (nylon, spandex, polyester)
  4. Run pattern of user (shuffling feet vs. smooth stride)
  5. Shoes
Suggested Solutions:
  1. Encourage users to drink more water to avoid dehydration (which results in dry skin)
  2. Encourage users to use lotion and drink more water (less friction with hydrated skin)
  3. Suggest users to wear clothing of natural fibers (cotton)
  4. Suggest change in run pattern
  5. Encourage wearing good fitting shoes (old shoes may be too worn causing friction) and shoes without nylon mesh
It has also been recommended users spray themselves with a product such as Static Guard or mist themselves with a mixture of water and fabric softener to avoid static buildup. Allow for sprayed areas to thoroughly dry before using treadmill.
What is the cause for static on my treadmill

Feb 20, 2013 | Life Fitness 9500HR Treadmill Next...

1 Answer

Tread shocks while using it


What is the cause for static on my treadmill? Winter is the time of year we receive calls regarding static electricity primarily on treadmills.In fact, many of the OEMs state they expect a certain amount of static, especially during this time of year.
Listed below are some of the sources which may be responsible for the static problems:
Items that gyms have control over:
  1. Worn motor brushes
  2. Worn belt/deck
  3. Lubrication maintenance
  4. Lack of humidity in air
  5. Dusty climate
  6. Bad ground
  7. Unit should not be on carpet
Suggested Solutions:
  1. If motor brushes are worn, replace
  2. If belt/deck are worn, replace
  3. Always keep belt/deck lubricated
  4. Run humidifiers in gym
  5. Keep equipment as clean and dust free as possible
  6. Check ground of machine (power outlet, power cord, drive motor)
  7. Install a rubber treadmill mat
Items that gyms have NO control over:
  1. Dehydration of user
  2. Dry skin of user
  3. Wool or synthetic materials (nylon, spandex, polyester)
  4. Run pattern of user (shuffling feet vs. smooth stride)
  5. Shoes
Suggested Solutions:
  1. Encourage users to drink more water to avoid dehydration (which results in dry skin)
  2. Encourage users to use lotion and drink more water (less friction with hydrated skin)
  3. Suggest users to wear clothing of natural fibers (cotton)
  4. Suggest change in run pattern
  5. Encourage wearing good fitting shoes (old shoes may be too worn causing friction) and shoes without nylon mesh
It has also been recommended users spray themselves with a product such as Static Guard or mist themselves with a mixture of water and fabric softener to avoid static buildup. Allow for sprayed areas to thoroughly dry before using treadmill.
What is the cause for static on my treadmill

Feb 12, 2013 | Precor C964i Treadmill

1 Answer

Motor quit running


I recently found one and it wouldn't turn so I took off the top burr and it would turn on so I would start with a thorough cleaning of the burrs then check the setting of the burrs, if they are too close the they wont allow the motor to run.
Next if the motor runs but the burrs don't turn it would be a sheared shear pin which is designed to shear in case a pebble got in the coffee before damage could occur
Third worn motor brushes. My motor was intermittent and found the brushes down to nothing. Now I am looking for new ones

Feb 10, 2013 | KitchenAid A-9 Electric Burr Grinder

1 Answer

Tunturi t7 showing error 20 !


this means the treadmills power reading when the treadmill was operating at speeds of 1 miles per hour or less . Excessive amount of power is being demanded from the motor controller for an excessive period of time
Causes:treadmill user (especially a heavier user) is standing on the drive belt.
the drive belt too is badly worn.
brush motor faulty
SCR motor cotroller lekay or shorted drive motor or capacitor
IN short RUN the sotware calibration for diagnostic.
Remedies:Lube the deck belt, determine using AC ammeter for the amount of use the current being drawn by the readmill.Replace the drive motor brushes.or replce the motor controller board. see the block diagram
God bless you

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Oct 11, 2012 | Tunturi T70 Treadmill

1 Answer

Schwinn 820 treadmill quit working in the middle of walk shows L-5 on screen. what is problem?


Loss signal: 3 possible areas that can be causing the problem speed sensor , motor control Board ( MCB ) or the drive motor. Unplug unit remove motor shroud then plug in unit now on the MCB their should be L E D s lights should be on. One of the L E D s should speed on other P W M . Start your treadmill you see the PWM light flickering thus the upper console and cable connections are good now it will go back L S. Reset your treadmill then manually start pushing the running belt now the speed light should be flickering if it does then the peed sensor is good if not flickering then replace sensor. If we have a good speed sensor then I would check the Drive Motor this done unplugging the unit the disconnect the two leads coming from the motor to MCB then by using a fully charge 18v drill battery connecting the leads to the motor should move it at approx; 1 mph then Your MCB is defective and need to be replaced. if no belt movement you for the most part will have worn brushes or open windings in the motor , I would open the brush compartment and inspect the brushes if they are less than 3/8" in length replace them this should the motor issue. Good Luck

May 13, 2010 | Schwinn 820 P Treadmill Silver Service...

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