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Where is the motor brush on a ls elite 780 treadmill

Where s the motor brushes located

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My belt is lubed and properly tightened. The belt will slow down intermittently randomly while running without anyone on it. Model NTL2495.0


first of all check the drive belt is loose or not. Drive beit connect with the motor and roller of the treadmill. its not possible to see the drive belt out side. you can only see it if you remove the motor cover. if its loose the try to tighten it. if its not the problem then the treadmill motor have some problem. Either the motor is faulty or the carbon brush is faulty. There is 2 carbon brush inside the motor which is replaceable, its used to take the voltage to the rotary part (armature) of the motor. If the contact with the rotary part and carbon brush is poor the this type of problem can occur. tyr to change the brush. Here i have added a video which demonstrate how to change the carbon brush of the treadmill motor. It not the exact model you have. but almost all treadmills have the same type of motor. even after replacing the carbon brush the treadmill shows the same problem then you have to charge the motor with a new one .
http://electro-medical.blogspot.com/

Fitness repairs

Nov 13, 2015 | Exercise & Fitness

1 Answer

My treadmill not running after 7 seconds diplay shows L5


Replacement Parts for Fitness Exercise Equipment at SPORTSMITH


It is common to see this error as and L5 error, but it is actually an LS error. The following information will define this error and give you the possible solutions to fix this issue.

LS Error with No Belt Movement on Landice Series Treadmills

LS Error on Landice L-Series Treadmills with No Belt Movement Probable Cause A LS error on the Landice L-Series treadmills can also look like L5 and this error code means there is a loss of speed signal. If this error occurs with no belt movement, the causes for the LS or L5 error are:A) Faulty upper display board or faulty relay board
B) Improper speed control wiring
C) Improper motor control wiring
D) Worn or faulty motor brushes
E) Faulty pwm/relay combo board or faulty drive motor
Corrective Action A) Enter Open Loop Speed mode and set treadmill speed to confirm proper line voltage to pwm board and that the green BELTSW light is lit on the relay board. Replace upper display board or relay board if necessary.
B) Inspect speed control wiring and correct wiring if necessary:
  1. Checking purple wire from V+ on pwm board to P3 on the relay board
  2. Checking orange wire from P1 on pwm board to P1 on the relay board
  3. Checking brown wire from P2 on pwm board to P2 on the relay board
  4. Confirm P3 on pmw board has no connection
C) Inspect motor control wiring, checking wires from motor to A+ and A-. Correct wiring if necessary.
D) Inspect motor brushes verifying brushes slide freely, are at least 3/8" long, are curved and have no burns or cracks. Also check the brush springs and verify that the brush copper wire is not burned or broken. Replace both motor brushes if necessary.
E) Inspect motor turns and is not seized up or has a broken shaft. Replace motor if necessary. Also verify at least 90VDC present from the black (A+) wire and white (A-) wire from the pwm board to the drive motor. If voltage is present, replace pwm/relay combo board. If no voltage present, replace drive motor.
Details about LS Error on Landice Series Treadmills with Belt Movement
LS Error on Landice L-Series Treadmills with Belt Movement Probable Cause A LS error on the Landice L-Series treadmills can also look like L5 and this error code means there is a loss of speed signal. This error can occur with belt movement but speed will not increase. Causes for the LS or L5 error with belt movement are:A) Speed sensor is out of adjustment
B) Speed sensor is damaged or faulty
C) Display cable is damaged or faulty
D) Improper speed control wiring Corrective Action A) Speed sensor should sit parallel with the flywheel and gap between speed sensor and flywheel should be within 1/16". Adjust speed sensor if necessary.
B) Inspect speed sensor connector to relay board. Check for pushed pins or loose wires. Repair or replace speed sensor assembly if necessary.
C) Inspect upper harness or display cable connector to relay board. Check for pushed pins or loose wires, giving specific attention to pin 5 (brown) and pin 9 (green). Repair or replace display cable if necessary.
D) Inspect speed control wiring:
  1. Checking purple wire from V+ on pwm board to P3 on the relay board
  2. Checking orange wire from P1 on pwm board to P1 on the relay board
  3. Checking brown wire from P2 on pwm board to P2 on the relay board
  4. Confirm P3 on pmw board has no connection
Correct speed control wiring if necessary.

Oct 13, 2015 | Exercise & Fitness

1 Answer

Precor L5 error


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 19, 2013 | Precor C954i Commercial Treadmill

1 Answer

Precor treadmill error L5


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 nec
Precor Error Code LS

Feb 25, 2012 | Precor 935 Premium Series Treadmill

1 Answer

The treadmill starts then after a few seconds it stops and a code L5 or LS comes up. the model is a york fitness z16


More likely LS= Loss Signal open the motor shroud on the motor their should be a cylindrical shape sensor (magnetic). Plug in treadmill and on the motor control board their should be a L E D (red or amber) by manually rotating the motor you should see that light flicker if it does sensor is good if not replace sensor. Next thing if sensor is good check motor brushes to see if they are mis-align or worn if worn less than 3/8" in length replace them

Mar 09, 2010 | Exercise & Fitness

2 Answers

Motor immediately shuts-down upon start-up


check the brushes, if the machine turns on normal but the engine does not work can be a problem with the brushes, check the connections or wires that go to the motor drive card. Also check the speed sensor is often a magnet

Feb 05, 2010 | Bodycraft TR1180 Light Treadmill

4 Answers

Treadmill Incline Works, belt does not move


Check the drive belt. It may be loose or broken. If the belt is loose, then to tighten the drive belt, start by removing the front cover. loosen the bolts around the motor then tighten the drive belt by tightening the motor adjuster bolt. Once the drive belt is tight, tighten the motor back down.

Mar 23, 2009 | Nordic Track NordicTrack A2350 Pro...

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