Question about Landice L9 Cario Trainer Commercial Treadmill

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Landice L9 Treadmill - Loss of Speed Signal Code

When the treadmills been in use for a bit, it will stop and the console says loss of speed signal. What does this mean, and how can it be fixed?

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  • Howard
    Howard May 11, 2010

    This is can mean serveral things have gone wrong with you treadmill. the loos of speed just means that belt stoped moving, nothing more. Is you unit under warranty??

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At starting, trys to go to speed and then reads LS on screen and runs very slow, with no response to any buttons.

Posted on May 18, 2010

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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

Why does it say loss of speed signal


As you have not provided the make and model of the treadmill I can only suggest the cause is usually a loss of signal from the motor drive to the display unit.

To fully diagnose the problem I will refer you to page 24 of this service manual for a treadmill that explains the problem.
Not sure if your treadmill is similar. http://www.landice.com/sites/default/files/L-60_L8622SeriesDiagnosticAddendum.pdf

Aug 19, 2014 | Exercise & Fitness

1 Answer

Speed sensor L5


follow this steps and fix it. God bless you
SAFETY SHUTDOWN Loss of Speed Signal" or "L5" WITH belt movement
This is usually an indication of a speed control malfunction. The upper board is not recognizing a signal pickup from the speed sensor. This could be due to the speed sensor being misaligned, improper connection, or bad speed sensor. Refer to the flowchart on page
"SAFETY SHUTDOWN Loss of Speed Signal" or "L5" WITH NO belt movement
The speed sensor is not recognizing any motor movement. This displays the error message to the upper board.
NOTE: USE THIS FOR DIAGNOSING THE PWM/RELAY COMBO BOARD

Oct 21, 2013 | Landice Exercise & Fitness

1 Answer

I have York intensity treadmill and its not working, the L 5 keeps showing on screen.


follow this steps and fix it. God bless you
AFETY SHUTDOWN Loss of Speed Signal" or "L5" WITH belt movement
This is usually an indication of a speed control malfunction. The upper board is not recognizing a signal pickup from the speed sensor. This could be due to the speed sensor being misaligned, improper connection, or bad speed sensor. Refer to the flowchart on page
"SAFETY SHUTDOWN Loss of Speed Signal" or "L5" WITH NO belt movement
The speed sensor is not recognizing any motor movement. This displays the error message to the upper board.

Test the input voltage 2)test the relais 3)see sensor speed wiring 4) test terminal motor.

God bless you

Oct 09, 2013 | York Exercise & Fitness

1 Answer

Loss of speed sensor


Speed sensor ir sensor wiring is bad

Mar 05, 2013 | Landice L7 LTd Pro Sports Trainer...

1 Answer

Loss of speed signal


Dear Sir:

Use the calibration software for easy diagnose and troubleshooting.
Most of them is coming from under the Hood of the motor for instruction follow the steps, or use your user manual.

Adjust the speed sensor see the diagrama, and tight the wires from the sensor.
2_17_2012_12_19_32_am.gifsincerely. God bless you.

ernesto cuadra
managua, nicaragua. c.a.
2_17_2012_12_20_02_am.gif

Feb 11, 2012 | Quantum Fitness Q 3.0 Light Commercial...

1 Answer

Treadmill not working


Belt speed Loss:

This condition indicates that the speed pickup signal was lost continuosly by during 1 second after the motor successfuly started.Normally indicate a failure of speed pickup or abrupt belt stoppage to due any motor, wiring,or motor controller failure.

Oct 24, 2011 | York Barbell Home Use Fold-Up Treadmill

1 Answer

Landice won't start, it gives a L 5 error. I already replaced both chip boards. but the light on the board closest to the motor does not come on! Not sure if I got a faulty board? Is there any information...


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.
Details about LS Error on Landice Series Treadmills with Belt Movement

Oct 14, 2009 | Landice L 7 Club Cardio Trainer Treadmill

1 Answer

I have a Landice L8 and the error code L5???


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.
Details about LS Error on Landice Series Treadmills with Belt Movement

Jul 09, 2009 | Landice L8 LTD Cardio Trainer Treadmill

1 Answer

Landice treadmill 05 error code comes on when i hit start


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.
Details about LS Error on Landice Series Treadmills with Belt Movement

Jun 28, 2009 | Landice L8 LTD Pro Sport Trainer Treadmill

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