1. Check that the power cord is plugged into a working mains socket (to check if the wall socket is working, plug in a lamp or other electrical device).

2. Check that the other end of the power cord is connected to your treadmill.

3. Check that the safety key is pushed fully into the console.

4. Check that the main switch near the power cord is set to I.

5. Check if the I/O switch lights up, if it does not light up change the fuse:
https://players.brightcove.net/3415345270001/DOHosj6Wy_default/index.html?videoId=ref:p1786030_1

The treadmill belt is slack:

=> Choose the tab "How to check if your running belt is correctly tensioned" in the SERVICING YOUR PRODUCT section.

1. Shoes:
=> The noise you hear could be the sound of your shoes on the running belt. To check that the noise isn't coming from your shoes, please see the video below

2. The screws are loose:
=> Tighten all of the screws.

3. The running belt is wonky:
=> Select the "Centring the running belt" tab in the SERVICING YOUR PRODUCT section.

4. The running belt is not lubricated:
=> Click on the "RUNNING BELT LUBRICATION" tab in the SERVICING YOUR PRODUCT section.

Running belt tension is too high:

=> Choose the tab "How to check if your running belt is correctly tensioned" in the SERVICING YOUR PRODUCT section.

PLEASE NOTE: the heart rate belt supplied is an analogue belt and not Bluetooth!

You can buy the Bluetooth heart rate monitor belt (BLE = Bluetooth Low Energy or Smart) with the product reference number 8334795 from our website or your local Decathlon store.

*Once properly set up, your heart rate monitor is automatically detected, and your heart rate, in beats per minute, will appear on the console's display.

*Compatible with other BLE heart rate monitors.

Is your equipment working properly but you're having a problem with the application? Click the "MY APP" button for troubleshooting tips.

- It lets you connect a BLE heart rate monitor.
(BLE = Bluetooth Low Energy or Smart)

-It allows you to connect to applications (Domyos E-connected, Kinomap and Zwift....)

The "USB" port is only for plugging in and charging your smartphone. It's not an MP3 system.

Every 200 km, the word "service" flashes up on the "GO" home screen.

This message is an important reminder to service your equipment by lubricating the treadmill deck.
*To see how to lubricate the treadmill deck, refer to the FAQ "RUNNING DECK LUBRICATION" in the "SERVICING YOUR PRODUCT" section.

Use the following lubricant only:  https://www.decathlon.co.uk/p/treadmill-lubricant-kit/_/R-p-119636?mc=8326425

To clear the message:
As soon as the safety key is plugged in and the service message appears, hold the "STOP" button and the tilt up arrow" ^ "for 3 seconds.

Before starting the operation, make sure that you have connected your treadmill to the mains and that your safety key is removed.

1. Push the "STOP"button,

2. While holding down the "STOP" button, insert the "SAFETY KEY",

3. The unit will be displayed:     UNIT MI for (Miles) or UNIT KM for (Kilometres).

4. Press the "+" speed button to change the unit,

5. Press "STOP" to confirm the changes,

6. You can now use your treadmill.

Before starting the operation, make sure that you have connected your treadmill to the mains and that your safety key is removed.

1. Push the "STOP"button,

2. While holding down the "STOP" button, insert the "SAFETY KEY",

3. The unit will be displayed: UNIT MI for (Miles) or UNIT KM for (Kilometres).

4. Press the "Start/Pause" button to scroll through the information:
- Screen 1 = Unit of measurement (MI or KM)
- Screen 2 = Total distance travelled.
- Screen 3 = total period of use.

5. Back to the main display, you can use your treadmill.

*To see how to select the right unit, see the FAQ "YOUR CONSOLE ISN'T SHOWING THE RIGHT SPEED" from the "PROBLEMS" section.

When the console displays "GO" with the security key installed, press the "+" button to activate the "Sound ON" function and the "-" button to activate the "Sound OFF" function.

1. Turn off and unplug your treadmill.

2. Apply a little gentle cleaning product to a pure cotton cloth.
Do not spray cleaning product directly onto your treadmill and do not use ammonia- or acid-based cleaning products.

3. Wipe down the console and screens.

4. Wipe any dust and marks from the handrails, footrests, frame and motor cover.
You should also wipe the platform alongside the belt.

Regular maintenance is necessary to preserve the performance of your equipment and extend its service life.
This action is recommended when the message "SERVICE" appears on your console.

1. Lubricate the deck after 200 kilometres of use.
Please see the FAQ on "RUNNING DECK LUBRICATION".

2. Unplug the power cord and open the motor cover to gently vacuum the interior.
Please see the section on: "REPAIRING YOUR PRODUCT" to remove the motor cover.

3. Inspect and correctly tighten all the external parts of the treadmill.
You can refer to the assembly video or the product manual.

Do not leave in a damp place or outdoors, nor in direct sunlight.

Place a standard floor mat (Domyos Training Mat) under your treadmill.

For home use only.

Maximum user weight: 130kg.

You will need the Allen key (BTR) that came with your treadmill:  
1. Switch on your treadmill and set it at a low speed (4 km/h).  
2. Insert the key into the bolt on the side where the running belt is off-centre.  
3. Turn it a quarter turn clockwise (wait 30 seconds between each quarter turn) until the belt is back in the correct position.

The T900D treadmill belt setting should be approximately 1.70 (+/- 0.03). This is the motor belt tension.

PLEASE NOTE: This tension is a guide for an optimal setting, however it is not necessary to tighten it if the value is lower than 1.70 and if in use your treadmill belt runs smoothly (no slipping, no jerks).
An excessively tight belt can cause premature wear of the rollers or motor.

After checking the tension on the console:
- If the figure is too low, you need to tighten the running belt.
(Tightening is done by turning the roller's two rear screws clockwise).

- If the figure is too high, you need to loosen the running belt.
( Loosening is done using the 2 screws on the rear roller in an anti-clockwise direction).

*Half a key turn= 0.03

For adjustment:select the "Running belt tension" tab in the MAINTENANCE section.

How to check the tension on the console:
1. Stand on the footrests.
2. When the safety key is removed, press and hold the" START "and" STOP" buttons for 3 seconds.
3. The console will display the word "start". Press the "START" button and insert the safety key.
4. The treadmill will start at 5 km/h and display the running belt tension. (Make any adjustments necessary).
5. Press the "STOP" button.

To extend the lifespan of your treadmill, you should lubricate it every 200 km of use.

Please use Domyos lubricant only (Ref: 8326425). You can order it from your Decathlon store or from our website by clicking the "DOMYOS LUBRICANT" button below.

1 & 2. Simply spray twice underneath the running belt on the right and on the left.
3. Then set your treadmill off at 5 km/h for 5 minutes, without standing on it.

1. Check the motor and the drive belt every 600 hours of use or every 3,600 km*
2. Replace the running belt every 500 hours of use or every 3,000 km*
3. Replace the running deck every 700 hours of use or every 4,200 km*
4. Replace the rollers every 600 hours of use or every 3,600 km*


*To find out the number of hours of use or the total distance run, go to the FAQs and read" HOW TO FIND OUT THE DISTANCE RUN AND HOURS OF USE ON YOUR TREADMILL" in the PROBLEMS section.