Dmm Exercise & Fitness - Answered Questions & Fixed Issues


Take the front cover off and see if the drive belt is on the motor. Try running it to see if the motor turns. This could be a motor or controller board problem.

Dmm Vision... | Answered on Mar 04, 2019 | 1,293 views


How do I get back to the basic treadmill....it popped up old programs

Dmm Vision... | Answered on Jan 11, 2019 | 1,107 views


It sounds like you have a membrane issue. There are a number of different T9450 models and they all have slightly different consoles. You'll need your serial number to help pinpoint the parts you need. Your best bet is to go through the manufacturer (johnsonfit.com) and have them help you get the correct membrane and overlay.

Dmm Vision... | Answered on Jun 16, 2017 | 1,224 views


follow this steps and fix it. God bless you

The power up test sequence has detected a key in the operated condition. The power up test
sequence is performed every time the unit is turned on (powered up). This test is performed
because a permanently stuck key will inhibit the correct operation of the unit.
Possible Causes
1. A key on the display housing is permanently stuck in the operated condition.
2. One of the upper PCA's keypad interface chips has failed.
3. Liquid (perhaps perspiration) is present on the surface of a touch sensitive display.
Possible Remedies
1. Remove the keypad connector cable from the upper PCA. Restart the power up sequence, if
the ERROR 5 is no longer present, the keypad is the cause. The keypad is typically part of
the display housing. Replace the display housing to correct the problem.
2. Remove the keypad connector cable from the upper PCA. Restart the power up sequence, if
the ERROR 5 is still present, the upper PCA is the cause. Replace the upper PCA to correct
this problem. Most upper PCA's are provided without software. Therefore, the software (chip)
must be removed from the upper PCA being replaced and re-installed on the replacement
upper PCA.
3. Wipe the surface of the touch sensitive display clean of all liquid. Restart the power up
sequence, if the ERROR 5 is no longer present, the liquid was the cause.

Dmm Vision... | Answered on May 04, 2015 | 532 views


Precor Error Code 26 Error Code: 26 Manufacturer: Precor
Model: All Models
Error Description: Error 26, Motor Pulse Width Incorrect - Observation of the speed sensor signal and verification the signal from the speed sensor is appropriate for the requested speed. If an incorrect or erratic speed sensor signal is detected the error appears. Possible Reason:
  1. The line of sight between the speed sensor and the speed sensor target is obstructed.
  2. Incorrect gap between the speed sensor and the speed sensor target.
  3. Incorrect adjustment of the speed sensor potentiometer (when equipped).
  4. Damaged speed sensor target.
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. 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".
  3. 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.
  4. Inspect the speed sensor target for any scratches or tears that could cause incorrect readings. Replace the speed sensor target if
Precor Error Code 26

Dmm Vision... | Answered on Feb 04, 2015 | 189 views


The buttons on this unit are on an overlay. Basically, the buttons are a big sticker that goes on the console. I would start by checking the connection between the overlay and the console board. If the connections in good, then try a new overlay. If that does not work then the console board is bad.

Dmm Vision... | Answered on Sep 06, 2014 | 535 views


It appears that your elevation system is where the fault lies. This could be as simple as recalibrating the lift mechanism, or possibly correcting faulty wiring from the lower controller to the lift motor. Be sure to check the condition of the lift motor as well as the wires entering the lift motor. Sometimes the wires will pull away from the plastic connector causing a lift motor error

Dmm Vision... | Answered on Mar 11, 2014 | 1,062 views


Your overlay is bad. Replace overlay

Dmm Vision... | Answered on Jan 04, 2014 | 85 views


If you have an illuminated display but no belt movement, the most common cause is a failed motor control board.

If you provide the serial # for your machine we can look up the correct motor control board part number and provide additional troubleshooting tips

Dmm Vision... | Answered on Dec 02, 2013 | 99 views


please see the chart +video attached attached and fix it . God bless you


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Dmm Vision... | Answered on Dec 02, 2013 | 68 views


please LUBE the deck belt see the video, lube the rollers bearing front and rear, test the drive belt for worn and replace. God bless you

Dmm Vision... | Answered on Jun 09, 2013 | 176 views


see the video and fix it. However if after you lube the problem remain. replace the old board deck, and test the motor see my personal TIPS for motor help.God bless you

Dmm Vision... | Answered on Apr 04, 2013 | 37 views


The motor and frame have a lifetime warranty

Dmm LIFESPAN... | Answered on Jan 13, 2013 | 374 views


please proceed according . Happy new year. God bless you

The Steps for Newer Style Console Calibration:

  1. Locate the calibration area on the rear or underside of the console (a hole, near the console's center, that goes through to the electronics board. (This hole should not have a screw in it.)

  2. Insert a pencil (eraser end), into the hole and feel around for the cal button (will click when pressed).

  3. Press the button 2 times (with the pencil eraser). The first click should show CL11 in the console, the second click should show CL21.

  4. If the process was done correctly, and CL21 appears in the console, you are in "calibration mode." The next few steps consists of pressing buttons on the console and observing settings. This will not require any other tools.

  5. Press ENTER. CL22 should display in the TIME window and (??) in the SPEED window.

  6. Press ENTER. CL23 should display in the TIME window and (??) in the SPEED window.

  7. Press ENTER. CL24 should display in the TIME window and (??) in the SPEED window.

  8. Press ENTER. CL25 should display in the TIME window and (??) in the SPEED window.

  9. Press ENTER. CL26 should display in the TIME window. You should then see the letter "E."

  10. Press ENTER. You should see "SS" or "55" in the console.

  11. Push the STOP/START button. For safety, at this point, you should step off, or be off, the treadmill.

  12. Push the ENTER button. The walking belt should start to move, accelerate to maximum speed, then stop on its own.

  13. When the belt stops, the incline should self test by raising to its highest incline position, then lowering back down to its lowest position.

  14. Once the incline test is complete, push the POWER button 2 times. The unit should shut off and the console should go completely blank. If this happens, the treadmill is done calibrating and is ready for use.

  15. If the letter "F" appears in the SPEED or INCLINE window when the power button is pressed 2 times, the treadmill is indicating a failure somewhere either in the SPEED or INCLINE (depending on the window the "F" appeared in). Troubleshooting the failure would be the next step.

Dmm Vision... | Answered on Mar 21, 2014 | 1,134 views


see the video attached. and fix it. God bless you

Dmm Vision... | Answered on Nov 26, 2012 | 81 views


LUBE THE deck belt, this happen because lack of maintenance, do ti
2( lube the rollers bearing too
3( test the input voltage motor, if there are the motor need repair
4) test the output voltage board, for input voltage motor, if there are NOT the board is faulty.
God bless you


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Dmm Vision... | Answered on Sep 24, 2012 | 413 views


Check the connections where the panel is located to make sure they are all secure. If you have done that it sounds like a loose solder connection on the display board. I would recommend checking all wire harness connections by unplugging and replugging back in each one.

Dmm Vision... | Answered on Jul 03, 2012 | 54 views


see this place and download the instr.manual www.iconservice.com or www. fitness.manualsonline.com

God bless you

Dmm Vision... | Answered on Jun 28, 2012 | 225 views


adjust the reed switch, see the diagram attached , clean, and tight the wires very well.

RUN the software calibration for diagnose, and troubleshooting.

If you can not run the s. calibration and after you did the adjustment for reed swithc, tight the ribbon cable inside, then tight the connector from display board vs lower board. If the problem persist the display board is faulty or main motor board is faulty. RUN the s. calibration.

sincerly. God bless you
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Dmm Vision... | Answered on May 06, 2012 | 59 views


Dear Sir:

Hello I hope that everything is o.k

Now I will help you, only thing is you need to know how to handle the DVOM(digital Voltimeter)


To use these instructions, you need to have a familiarity with electricity and a working knowledge of a voltage multimeter. With all of
these tests, USE EXTREME CAUTION!!! Never let the voltage ground directly to any part of the treadmill or your leads ground while you
are testing voltage.
To begin, set your volt meter to AC volts. We are going to trace the power from the wall outlet through the
treadmill to see where it ends.
With the treadmill unplugged, test the wall outlet. You should have from 115 to 125 VAC. Optimally, you will
have at least 120 VAC.
Follow the power leads from the power cord to the lead ends. With the treadmill unplugged, connect your
meter to the lead ends. Plug the treadmill in and check your reading. It should be the same as your reading
from the wall outlet.
Continue this process with the electrical system, following the leads, as they pass through, breakers, fuses,
and the like.
Where the power flow ends is where your problem is. Sometimes it will be in a bad connection, sometimes
it will be in a shorted breaker or blown fuse, at times it may be as simple as a safety switch not working
properly, or it may be a major problem with a component.
In some cases, components work in tandem (i.e.- a controller may need a signal from the console
computer to release voltage to the motor) so if you have a question concerning where voltage ends, email
us at doc@treadmilldoctor.com.
TESTING FUSES, BREAKERS, WIRING, AND SWITCHES
1) One of the most common problems with power outages is problems with fuses, breakers, wiring, or switches.
2) If your treadmill is equipped with a safety switch, set your volt meter to continuity. Touch your test leads together to make sure you
are getting a closed circuit. With the treadmill unplugged, back the leads off the safety switch, usually near the upper display computer.
With the safety key out, test the switch. It should be open. Push the safety key in. Your circuit should be closed. If this tests ok, move to
the next step.
3) While testing for voltage, you can unplug your treadmill and test the fuses, breakers, and wiring harnesses. Sometimes a breaker may
have shorted open and not tripped. Test these components individually. You want a closed circuit on all of them

instructions Things You'll Need
  • Digital multimeter or analog multimeter
  1. Using a digital multimeter
    • 1 Connect the test leads to the volt-ohmmeter. Plug the black test leads into the black jack marked "Com" or "Common" on the front of the meter. Plug the red test lead into the red jack marked "Volts/Ohms" on the front of the meter.
    • 2 Set the meter's function switch to "Ohms" and the range switch to the "R x 1" scale. If your digital multimeter is an auto ranging meter, you will not have a range switch. Instead, you'll have just a function switch because the meter will automatically select the right range for the quantity that you are measuring.
    • 3 Turn off the power and remove the fuse to be tested from the circuit. Never test a fuse for continuity while it is still connected to the circuit that it is used to protect. If the circuit still has voltage, the meter will be irreparably damaged. If the fuse is still in the circuit when tested it is possible to get a false indication that the fuse is good if the meter gets a completed circuit through other circuit components. To be safe, always remove the fuse from the circuit before testing it.
    • 4 Touch the black test probe to one end of the fuse and the red test probe to the other end of the fuse. It does not matter which probe you touch to which end because fuses are not polarized. You are checking to see if there is continuity through the fuse element. A reading of approximately 0.5 on a digital meter's LCD indicates a good fuse. Most digital meters read their own internal fuses resistance, hence 0.5 Ohms and not 0.00 Ohms. LCD readout of "O.L." indicates no continuity through the fuse. The fuse is bad and needs to be replaced

Thank you in advance, best regard. Blessing.

If you need additional Help, please contact me.

E.CUADRA
MANAGUA, NICARAGUA. C.A.

Dmm Vision... | Answered on Sep 28, 2011 | 418 views

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