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6300/6310 Treadmill Electronics Repair Manual – Motor
6300/6310 Voltage to Motor – Test Procedure
1. Put multimeter to the DC voltage setting. Place probes as shown on the drive board M+ and M-
connectors.
2. Turn on unit power. Press SPEED<▲> key. The multimeter should show an increase in voltage.
The motor should operate. At the highest speed (12.0 MPH), the multimeter should show 100-120
VDC.
6300/6310 Voltage to Motor – Test Results
If there is no voltage across M+ and M- connectors, the drive board is not supplying power.
Inspect the following:
1.Drive board power indicator, LED2. If LED2 does not light, trace power from the wall into the
unit, to see where the power stops. Also, inspect fuses.
2.Drive board IGBT short indicator, LED8. If LED8 lights, the IGBT has a short. Replace the drive
board.
3.Transformer and its wire connectors. See TESTING – TRANSFORMER.1.
4.Test the drive board by replacing it with a new one.
If the drive board does provide power, but the motor does not operate, inspect the motor wire
connections. If the wires are good and the connections are good, but the motor does not operate,
the motor is bad. Replace it.
MOTOR.03