Trouble Shooting
Problem
Monitor does not display
No speed or distance displays on
the monitor
No tension
Heart rate not displaying
Grinding Noise
Squealing
E1 Monior cannot read the signal
change (level change or level
change cannot reach target
position) from the gear motor
E2 The computer
cannot interface with the
IC chip.
E3
SB250 Recumbent Bike
Cause
Adapter not plugged in
Computer Wires not connected
Sensor wire not connected
Sensor wire not working properly
Monitor not working properly
Magnetic wheel not working properly
Computer wires not connected
properly
Pulse wire not connected
Hand pulse defective
Monitor not working
Crank bearing defective
Idler pulley defective
Flywheel defective
V-belt slipping
Monitor has a problem
The connection cables from monitor
to gear motor are damaged or
disconnected. Pins of the connector
are bent or not fix well.
Gear Motor damage or circuit on the
gear motor is abnormal.
Wire cable from gear motor to
magnetic system is too short to
drive the magnetic system or
position is not correct.
EEPROM has problem (EEPROM
is installed incorrect)
The gear motor cannot read the
signal change from the level one
within 4 seconds after press the
start button.
22
Solution
Plug adapter in
Ensure the computer wires are con-
nected properly at the upright and
computer
Ensure the computer wires are con-
nected properly at the upright and
the computer
Replace sensor wire
Replace monitor
Replace magnetic wheel
Ensure the computer wires are con-
nected properly at the upright and
the computer
Secure plug wires together
Replace hand pulse grip
Replace Monitor
Replace crank bearings
Replace idler pulley
Replace flywheel
Adjust v-belt
Replace monitor
Check all computer plugs and wires
are connected firmly.
Replace gear motor
Adjust the length of motor wire
to make sure there are enough
space to drive the motor.
Replace monitor
Replace gear motor
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