High speed and error 91 and treadmill stop - Kettler TX1 Treadmill with FREE INSIDE Delivery! Treadmill

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Try below:

ERROR CODE
DESCRIPTION
E1
Speed error (The treadmill running speed is 3.2 kph faster than the displayed
speed). The treadmill will stop immediately when the console detects this error.
E2
Speed error (The treadmill running speed is 3.2 kph slower than the displayed
speed). The treadmill will stop 16 seconds later after the console detects this
error.
Troubleshooting / Resetting error codes
In the rare event of the treadmill displaying an error code ("E" followed by a number), simply reset
the computer by:
1. Step off the treadmill. Ensure that you are clear of the running belt.
2. Turn the treadmill off at the master power switch located near the motor housing.
WARNING: Ensure nothing is positioned near or under running belt which may possibly block
it's normal operation.
3. Turn the treadmill on at the master power switch.
4. Ensure that the Safety Tether Key is securely and properly installed onto the console or just
reinstalling the Safety Tether Key can also reset the display.
If the above does not clear the error code, please contact the nearest Dealer/Service Center

LifeGear 97320 Owner Manual Page 17

After 5 seconds stop the treadmill and err 91 what is the problem , which parts has to replace. Speed censor is good when checked with another pcb.

This may be a faulty speed sensor.
Or a faulty LCB

Use 2000W converter instead of 750W because you are using your treadmill on its full power on high speed. 750W converter is not capable of handling its full load resulting the machine malfunctioning. Your treadmill 785E have 2.25 CHP motor, 2.25 CHP is equal to 1677.824712W and 20-Amp minimum Ac outlet is required for your treadmill in order to function in full capacity. Download user's manual on: https://www.sportsmith.net/images/product_support/ProForm/PFTL785081%20-%20PROFORM%20I%20SERIES%20785%20E%20TREADMILL/PFTL78508.1-274823.pdf See Horse Power to Watts Converter on: http://www.rapidtables.com/convert/power/hp-to-watt.htm

1) LUbe the deck belt, the lack of lube produce Shut down, by enough friction between deck vs deck belt
2) Lube the rollers bearing very well
3) Measure the input voltage motor, if there are the motor need repair
4) Measure the output voltage board, for input voltage motor, if there are Not the board is faulty.
5) Run the software calibration, for diagnose, and troubleshooting.
God bless you

Problem with Trendmil TX-3 err-91 problem is solved ... speed sensor (photo transistro in photo cell is damaged).The palsis in colector is 5V Amplitud .

hi,
There are two possibilities for this problem
1. Check the speed sensor on near the motor pulley. Remove the sensor and clean it and re-fix it. then make a try. if problem remains then
2. The motor speed controller is faulty. There is an IGBT for controlling the motor speed. If it get shorted the motor will run it its high speed.

Be sure before opening the treadmill remove the power.
ok

Your speed sensor may have failed and cause this condition Call Accell Fitness Of North America @ 1-888-388-6887 they are the Tunturi Distributors

Precor Error E4, Incomplete Initialization Probable Cause Indicates that an incomplete upper PCA to lower PCA initialization occurred. When this error occurs, all lift motor and drive motor motion is ceased and the display will go blank except for the error displayed.
Corrective Action Run the initialization program. Caution: The treadmill's running belt will accelerate to the treadmill's maximum speed (12mph). DO NOT stand on the treadmill's running belt during the procedure.

1. Set the on/off switch to the OFF position. Wait a minimum of 10 seconds to allow the internal power supply to discharge.
2. Remove the safety key from the console and set the on/off switch to the ON position.
3. Press INCLINE UP and SPEED DOWN keys together. While pressing these keys, replace the safety switch on the console. Continue holding the INCLINE UP and SPEED DOWN keys until the display goes blank. INIT will appear in the time window of the display. The EEPROM is now clear and reset. After a second, 1.25 will appear in the distance/calories window, 15.0 (the maximum incline) will appear in the incline window, and 12.0 (the maximum speed) will flash in the speed/pace window.
4. Press QUICKSTART to begin the speed calibration process. Power bits will appear in the incline window, the target speed will appear in the time window and the actual speed will appear in the speed/pace window. At the beginning of the process, the target speed will be .5mph. The running belt will start. Once the actual speed reaches .5mph, the target speed will then change to 12mph and the running belt will accelerate until it reaches 12mph, then it will stop.
5. When the running belt stops, the display will return to the user mode and the initialization process is complete.

Precor Error Code E4