45
TROUBLE SHOOTING
CODE
REASON
SOLUTION
E1
Message failure between computer
and control board
1.
Check the computer and bottom control board wire
connect well;
2.
Check if IC on control board is loosen, reset the
IC
3.
Power on bottom control board has some problem,
change the bottom control board
4.
Change the computer.
E2
Control board have not find out the
voltage on DC motor wire
1.
Check if the DC motor wire connect well with control
board,reconnect the wire
2. If the wire connect well,Check if the power tube and
the nearby component are damaged, change a
good one.
E3
DC motor have not find out the
speed
feedback
signal
when
rotating
1.
Check if the DC motor are rotate,if it stop after quickly
rotate,then computer show E03,please check if light
sensor is fixed well, if the light sensor wire are
damaged or it’s pin connect well with 4 pin on speed
sensor
2.
Check if 4 pin and nearby component or control
board and IC are damage
3.
If start the treadmill ,DC motor do not rotate,then
computer show E03,please check if DC motor is
blocked or damaged
E5
Current overload protecting
1.
Over rated loaded or the motor is stuck, cause
excessive current, machine will start self-protecting
system. Adjust the machine and restart;
2.
Check if the motor has noise from motor or if the
motor / bottom control board were burnt out, if burnt
out, change good motor and control board; Use
right voltage.
E7
Computer have not find out the
safety
key
signal(Notice:some
product show
＂－－－＂
if no safety
key)
1.
Check if safety key was put on it’s position
2.
Open the computer to check if safety key wire are
connect well and PCB are damage or it’s position are
deviation
Summary of Contents for DHS 9520
Page 20: ...19 LISTA PARTILOR COMPONENTE...
Page 43: ...42 EXPLODED DRAWING...
