how to fix a treadmill | original technical documentation OMA treadmill manufacturer

OMA is one of the most famous treadmill manufacturer, let's see the error codes provided by their technical dept.

Following codes are based on 16004 treadmill but do apply also for other models.

Need replacement parts? Buy them here:

1. Running/Walking Belt for treadmill  
2. Treadmill safety key 
3. Treadmill drive belt (J6)
4. Speed sensor for treadmill 
5. Treadmill running deck 
6. Treadmill controller 220 to 240 VAC input (Europe / Asia / Australia) 
7. Treadmill controllers 110-120 VAC input (North America)
8. Treadmill motor 
9. Treadmill motor parts, brushes, holders, fans 
10. Transformers, chokes, breakers, cables 

Running Belt Tension Adjustment

Caution:
Over-tightening of the roller will severely shorten the life of the belt and may cause further damage to other components.

Running Belt:
If when you plant your foot on the belt, you can feel slipping sensation then the belt has stretched and is
slipping across the rollers. This is a normal and common adjustment on a new treadmill.    
To eliminate this slipping, rotate the two Allen bolts of rear roller by 1/4 TURN as diagram shown.
Try the treadmill again to check for slipping.    Repeat if necessary, but NEVER TURN the roller bolts more than 1/4 turn at a time.
 
The right tension of running belt is 0.9 - 1.1 lb.

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Treadmill Error Troubleshooting

Errors for Lohas Strengthmaster Range, MCB SMM2100 and SMM2150

Treadmill Error E1
1.    Check the speed sensor connections, ensure they are fitted correctly.
2.    Check for any damage to sensor or magnet in rollers pulley.
3.    Note: the sensor and magnet should be within 2 – 3 mm of each other.
4.    If E1 still there contact your local distributor for assistance.

Treadmill Error E2
1.    Check all wiring to MCB, PCB and Motor.
2.    If E2 still there contact your local distributor for assistance.

Treadmill Error E4 (Only with HRC program)
1.    Ensure you have a good grip on Heart rate sensors on the handlebars.
2.    Make sure hands are moist (Aloe Vera helps)
3.    If using the wireless HR straps please follow as per owners manual.
4.    Check battery.
5.    Check all wiring to and from the Incline motor.
6.    If E4 still there contact your local distributor for assistance.

Treadmill Error E6
1.    Check all wiring to and from the Incline motor.
2.    If E6 still there contact your local distributor for assistance.

Treadmill Error E7
1.    Check all wiring to and from the Incline motor.
2.    If E7 still there contact your local distributor for assistance.

Treadmill Error E9
1.    Check all wiring from Base to console.
2.    If E9 still there contact your local distributor for assistance.

Treadmill Error N/A
1.    If the console is not lighting up or is erratic, check power is correctly connected. Check Safety Key is also in place.
2.    Running belt won’t stay centered, ensure treadmill is on a level surface, or refer to the instructions in this owner’s manual on how to adjust belt.
3.    Treadmill motor seems strained; check the running deck and belt have sufficient lubrication.
4.    Treadmill belt slips during use; refer to the instructions in this owner’s manual on how to adjust belt.

Treadmill motor replace | how to set IR, SPEED, Torque on Motor Board

Turn IR and LIMIT (also called TORQUE) clockwise or counterclockwise for half scale every time to get higher or less torque.

SPEED: it is used to set up the rapport between
the signal coming from console to motor controller
AND the voltage to the motor (i.e. signal 5V from console to MCB = 140 V may become 5V from console -> 180V to the motor)

You don't usually need to set SPEED. The sensor (REED or optic) on the treadmill gives a feeedback to the console and the console adjust the signal to the MCB until the correct speed has been reached.

Treadmill Elevation Motor removal and replacement

Incline motor removal in a treadmill

Adjust treadmill motor controller board after motor change | Astek treadmill boards

1. Please adjust the IR, LIMIT and SPEED value on the MCB.

2. For Turdan Motors, adjust the IR value to 11 and LIMIT value to 5.5

3. For Turdan Motors, adjust the SPEED value to 8.5

Treadmill E1 error | change the optical speed sensor to a magnetic speed sensor without replacing the original power board

In case you need to change the optical speed sensor to a  magnetic speed sensor without
replacing the original power board please do the following:

1) Fix the magnetic speed sensor to the correct place pointing towards the magnet
in the front roller. Leave the distance between sensor and magnet 2 - 3 mm

2) a. Connect the speed sensor to the power board by using the 2 pin cable: 

    b. or cut original wires, and connect wires directly. Red is not connected. (close up open 
        wires with shrink-hose)
    c. or connect the 2 pin plug directly on the 3 pin socket on PCB. Right 2 pins are used. Left      
        one is not connected. Pls make sure connector is fixed properly to the socket (glue).

Please connect the power and manually rotate the front roller to see if the speed signal appears
on the power board on LED in position D30