Error 5 3 - Bodyguard T-30 User Manual

Check if the Motor Brushes are touching the commutator. Are they worn? If so, clean with fine
sandpaper and reinsert. Test. You may need to replace the Motor Brushes.
Quick Motor Functionality Test using a 9V Battery:
Remove the Drive Belt that is connected to the Drive Motor Pulley so the motor can turn easily.
Remove the Motor Wires and connect a 9V battery to the positive and negative connectors. When
the motor wires make contact with the battery terminals the motor should spin.
Thorough Motor Test:
Place a multimeter pin in each motor wire connector and check the resistance.
You should get a reading between 0.9 & 1.6 OHMS. If you get a slightly lower or higher reading then
turn the flywheel a small amount and test again. A slightly higher or lower reading can be caused if
the reading was taken between poles (e.g. lower than 0.9 or up to 4 ohms). If you get "OL"
(Overload) on the multimeter then you have an open circuit in the motor and will likely have it in every
position you try to take a reading. The above-mentioned Quick Motor Functionality Test would fail if
you have an open circuit. You need to confirm if the "OL" is being caused by the Motor Brushes not
making contact with the commutator or an error inside the motor.
If the Motor Brushes are not making good contact with the commutator then it is possible that the
circuit has been opened inside the motor causing the "OL" which requires a motor change.
If you get a correct reading between 0.9 and 1.6 Ohms with the 1st reading then continue to test the
motor in 11 more position. Rotate the motor flywheel (e.g. from 12 o-clock to 1 o-clock) and ensure
the flywheel comes to a complete stop and take another reading. After each reading rotate the
flywheel to the next position, stop, then take another reading. A good motor will have all the readings
(except if between poles) between 0.9 and 1.6 Ohms. A bad motor may have a lot of readings
outside the range.
If above tests are OK then it is likely a Short Circuit on one of the power transistors (MOSFET) on the
M.C.B.
8.5.3 ERROR 53
DESCRIPTION:
Error 53 appears immediately when unit is turned on: M.C.B. not receiving communication from
Speed Sensor (e.g. not plugged in to M.C.B.)
Error 53 appears after walking belt turns for a short period of time: Speed Sensor not getting a
continuous reading from the optic disc on the drive motor for 5 seconds or the speed sensor is
getting a reading far below what is on the console.
ACTIONS:
Check if there is a "d" on the M.C.B. If so, the issue is likely with the speed sensor cable.
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Check connection of cable and refer to error code sheet.
If there is a "B" or a "C" on the M.C.B. check the position of the Speed Sensor. It should be
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positioned evenly around the optic disc. Is the Speed Sensor bracket bent or misaligned? If
so, loosen the speed sensor bracket screws on the drive motor that is holding it in place and
reposition the bracket correctly around the optic disc then tighten the screws firmly and test.
You can confirm the Speed Sensor is getting a reading correctly from the optic disc by turning
the power on and manually turning the drive motor flywheel so the optic disc spins. If the
speed sensor is reading correctly then the Speed Sensor L.E.D. on the M.C.B. will flash as it
takes a reading between each slot on the optic disc.
Check there is nothing jammed in the rollers or under the treadmill causing the belt to be
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jammed or stuck or that the drive belt and walking belt tensions are not too tight.
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