Question about Horizon DT850 Motor Control Board

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Horizon DT850 treadmill belt won't move

Everything else works but the belt won't move?

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  • Horizon Master
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Step 1:

please see the video and lube too the rollers bearing. Happy new year and God bless you

Step 2:

test the input voltage motor, if there are voltage in the motor, the motor NEED repair, see the diagram attached, and see my personal TIPS for motor help.
horizon DT850 treadmill belt won't move - 12_31_2012_7_10_06_pm.jpg

Step 3:

test the output voltage board, for input voltage motor, if there are NOT the board is faulty.
see the diagram attached.
12_31_2012_7_11_08_pm.gif

Posted on Dec 31, 2012

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: i have a horizon t92 treadmill. my problem is with

Loosen rear tension and recent and tighten.

First grab the walking belt on an edge and lift up, It should only lift up 3 inches, this about the right tension

There are two guides underneath near the front make sure the belt is underneath them. (they touch the white side)

If OKay, remove the endcap byu the tension control bolts (two screws underneath) and make sure you have adjustment room (threads showing on bolts toward the rear)
these bolts should look about the same position with respect to the roller.

Run the machine on slow, walk on it and try to stop the walking belt, if it slips - turn both rear bolts 1 turn clockwise.,repeat until it doesn't slip

Get off and run the machine on slow 2mph, turn the bolt on the side the belt wanders to 1/4 turn clockwise. If it goes over fast you may need turn the bolt 1 full turn right away (it shouldn't). If its kinda of stable - speed up machine to 5-6 and repeat.

Note the front of the belt should be centered first, this is preset and usually doesn't need adjustment

Posted on Aug 22, 2009

  • 246 Answers

SOURCE: WE have just moved home and lost our safety magnet

here's a link to an ebay page of treadmill safety keys for horizon treadmills. hope this helps!

Posted on Feb 18, 2010

maxtreadmill
  • 832 Answers

SOURCE: I have a Horizon elite 507 treadmill, everything

Unplug your treadmill and remove motor shroud ,locate Motor control board their a series of LEDs . Now without getting on treadmill hit start look down and you should a light starting to flicker this is your PWM signal, t the upper console sends a signal to the lower board and instructs the motor to start. This tells me that the upper board and cable are functioning properly and our problem is either the board or motor.
DC motors can be easily tested in a number of ways. Many times a motor is replaced only to find another problem exists so be sure to test the motor if you think it is a problem. Methods to test a motor: 1) Cordless drill battery- get a fully-charged, 18 volt (preferred) cordless drill battery and on most treadmills connect the red and black motor leads to the battery (some have different colors but if you have two wires and get it hooked up backwards, the motor will just run backwards and won’t be harmed). If good, the motor should operate at about 1 MPH. 2) Car battery- these are 12VDC high amp batteries so the motor will turn slowly but you can walk on the belt. Always be careful with battery acid on these things so we don’t recommend bringing them in the house…take the treadmill to the battery.
If the motor test good then all fingers point to the Motor Control Board replace the board. When was the last time lubricated the running deck?
Answer: Never ! Then I suggest you purchase lubricant and apply it on the deck about 75% to 85% of the problems are belt and deck related.

Posted on May 23, 2010

Testimonial: "Many thanks for prompt response, seems that the treadmill works only when in the upright position and not the horizontal as per normal. Gonna have to learn to run up walls i guess"

maxtreadmill
  • 832 Answers

SOURCE: Horizon Treadmill T5.1. A sudden vibration and

To find a specific bearing that has gone bad in a treadmill you can use a long handled screwdriver and touch it to a non-moving portion of the rollers and then put your ear up to the handle and the screwdriver will amplify the noise of the part so you can find out which part is making the noise. If it is a bearing, it will be obvious which part is the problem because the grinding noise of the bad bearing with be amplified by the screwdriver.

Posted on Jun 11, 2010

  • 1 Answer

SOURCE: horizon treadmill won't start running

The manual said that after lubricating the deck, press Stop and Speed buttons together for 5 minutes and this will reset the lubrication message and the treadmill should work.

Posted on Aug 22, 2010

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Step 1:

see the diagram attached.

Clean the motor, lube the gear+shaft
Adjust the small POT for a little.
RUN the software calibration for troubleshooting. see the diagram
2_8_2013_11_10_42_am.gif

Step 2:

2_8_2013_11_11_14_am.jpg

Step 3:

2_8_2013_11_11_47_am.jpg

Step 4:


he 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.
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Horizon digital DT850 treadmill turns on can select workout hit start button belt does not turn on/rotate


Step 1:

seee the video attached and lube the rollers bearing too. Happy NEW yEAR .God bless you


Step 2:

Test the input voltage motor, if there are the motor need repair see my personal TIPS for motor help. see the diagram attached.
12_31_2012_7_04_21_pm.jpg

Step 3:

test the output voltage board, for input voltage motor, if there are NOT the board is faulty.
see the diagram attached.
12_31_2012_7_06_11_pm.gif

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