Athlon iQ2 treadmill-just replaced motor control board including speed sensor. Get E3 error on attempting to start speed increase and everything shuts down. Help.Others insist this is a speed sensor problem but since sensor is brand new what?Incline control works fine.

There could be a few different things causing your Landice L7 treadmill to race to top speed when turned on. Here are some potential causes and solutions:

1. Motor Control Board: The motor control board may be malfunctioning and sending the treadmill into top speed automatically. If this is the case, you will need to replace the motor control board.
2. Console Board: The console board may be sending incorrect signals to the motor control board, causing the treadmill to race to top speed. If this is the case, you will need to replace the console board.
3. Speed Sensor: The speed sensor may be malfunctioning and sending incorrect signals to the motor control board. If this is the case, you will need to replace the speed sensor.
4. Calibration: The treadmill may be out of calibration, causing it to race to top speed. To recalibrate the treadmill, consult your owner's manual for instructions.

It's recommended to consult with a qualified technician to diagnose and fix the issue to avoid causing further damage or injury.

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.

Test the speed sensor with a meter. If that tests ok then you will need to replace the motor controller and walking belt.

1)probably a faulty speed sensor
2) speed sensor is not plugged in properly.
3)possibly a faulty motor
4) Main control board or lower board.
The error codes will differ between makes and models but could be e1.
Check this video for speed sensor.
http://www.youtube.com/watch?v=23ZgWaVEQjA

adjust the speed sensor:Move the motor to slacken the pulley, then lift the motor to get underneath. That is where the treadmills speed sensor will be located. It is usually a square or rectangular shaped green module with connectors at both ends.

Finally after you did the adjustment you can conclude:
A) Faulty Speed sensor B) Main Motor faulty C) Main Motor Controller faulty.

attached block diagram for treadmill that I did for any treadmills,see how the Main Motor Board has function for 90% of the treadmills.
sincerely.
E.CUADRA
MANAGUA, NICARAGUA. C.A

Precor Error Code 22 Error Code: 22 Manufacturer: Precor
Model: All Models
Error Description: Error 22, No Motor Pulses at Start Up - Error indicates that the display has sent a command for the drive motor to start, however, the speed sensor has not returned the signal acknowledging that the drive motor has started. Possible Reason:

1. The line of sight between the speed sensor and the speed sensor target is obstructed.
2. Badly worn drive motor brushes.
3. Incorrect gap between the speed sensor and the speed sensor target.
4. Incorrect adjustment of the speed sensor potentiometer (when equipped).
5. Inoperative speed sensor.
6. Faulty lower PCA.
7. Faulty interconnect cable between upper and lower PCA.
8. Faulty upper PCA.

Recommended Action:

1. Using a static safe vacuum cleaner, carefully vacuum out the drive motor compartment. Be sure to thoroughly clean the area between the speed sensor and the speed sensor target.
2. Bady worn drive motor brushes cannot make proper contact with the motor commutator, therefore the drive motor will not start when voltage is applied. Inspect and replace drive motor brushes if necessary.
3. Inspect the gap of the speed sensor to the speed sensor target. Proper gap is 3/16" and the speed sensor photo eye should be aimed at the larger portion of the targets wedge shaped section. If unit has a magnetic speed sensor, the gap between the end of the sensor and the flywheel tooth needs to be 3/16".
4. Locate the speed sensor potentiometer (when equipped) on the lower PCA. Set the speed sensor potentiometer to mid-range. Start the treadmill and increase speed to 6 mph. Carefully adjust the speed sensor potentiometer until the treadmill is operating the smoothest. Increase the speed to full speed and again adjust the speed sensor potentiometer until the treadmill is operating the smoothest. These two adjustments are typically small and are generally only a matter of fine tuning.
5. An inoperative speed sensor will allow the drive motor to start and run briefly before the error appears. If able to access the speed sensor wiring, measure the DC voltage between the speed sensor leads. Two of the leads will always read about 5 VDC. Two will toggle between 0 and 5 VDC as you slowly turn the speed sensor target. If both measurements are not seen, the speed sensor needs replaced. Some units have the speed sensor mounted on the lower PCA and the lower PCA needs replaced.
6. Determine if the lower PCA is bad by swapping with a known good lower PCA.
7. Determine if the interconnect cable is bad by swapping with a know good cable.
8. Determine if the upper PCA is bad by swapping with a know good upper PCA.

Precor Error Code 22

hi,
Error E3 means speed sensor error.there is a sensor for checking and controlling the speed. check the speed sensor and its,connectors, clean the speed sensor. for that u have to open the motor cover.
ok

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.
Error 23 indicates that the speed sensor signal was lost while the treadmill was in operation
Error 26 this error monitors the speed sensor signal and verifies the the speed sensor signal is appropriate for the requested speed. If the speed sensor signal is incorrect or erratic an Error 26 will be displayed.
Unplug unit and remove motor shroud and try these procedures:
The treadmill utilizes an optical (infrared) speed sensor and the line of sight between the speed sensor and the speed sensor target is obstructed. The speed sensor position relative to the speed sensor target is incorrect. The speed sensor potentiometer adjustment is incorrect (when equipped). The speed sensor target is damaged
Carefully, vacuum out the drive motor compartment with a static safe vacuum cleaner. Pay special attention to the area between the speed sensor and speed sensor target. Adjust the speed sensor position so that the space between the speed sensor and the speed sensor target is 3/16 inch and so that the speed sensor photo eye is aimed at the larger portion of the targets wedge shaped section. On hall effect speed sensors (magnetic sensor) the space between the end of the speed sensor and the flywheel tooth should be 3/16 inch. If the treadmill utilizes a speed sensor potentiometer, locate the speed sensor potentiometer on the lower PCA. Set the speed sensor potentiometer at mid-range. Start the treadmill and increase the speed to 6 mile per hour. Carefully adjust the speed sensor potentiometer to the point where the treadmill is operating the smoothest. Increase the treadmills speed to full speed at repeat the previous adjustment. These two adjustments are typically small and are usually only a matter of fine tuning. . Most speed sensor targets consist of a circular arrangement of alternate black and silver sections. If the speed sensor target is torn or badly scratched the speed sensor may receive an incorrect reading. Replace the speed sensor target.

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

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

Hi most of the treadmill with e2 error code are related to the motor speed sensor so check the sensor