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S-7200C
19. TROUBLESHOOTING
159
Error code Possible cause Page
E090
Treadle connector
is not connected.
・ Is the 4-pin treadle connector inside the control box disconnected?
Press the power OFF switch, and then check that the 4-pin treadle connector is
connected to connector P14 on the main PCB.
If there is a broken wire in the cord of the treadle connector, replace the treadle
unit.
150-151
*
E091
・ The settings in “Setting method for standard depression stroke” may be incorrect.
Redo the settings in “Setting method for standard depression strokes”.
・ Problem with treadle unit.
Replace the treadle unit.
141-144
*
E095
・ Was the power ON switch pressed while the treadle was still depressed?
Return the treadle to the neutral position. When the treadle neutral position is
detected, the error will be cleared and normal operation will then be possible.
・ Is the power supply voltage too low?
Check the power supply voltage.
E100
・ This appears on the display when the sewing machine has continued to be used for a
certain period after the “GrEASEUP” or “GrUP” notification appears without the
grease being applied (without the reset procedure being carried out).
Press the power OFF switch, apply grease, and then carry out the reset
procedure.
137, 139
E111
・ The sewing machine could not stop correctly at the needle up stop position after
thread trimming.
Remove any thread scraps that may be blocking the motor.
Press the power OFF switch and then turn the machine pulley by hand and
check that it turns easily.
Check that there are no problems with the thread trimming mechanism.
*
E130
The sewing machine or motor do not operate when the treadle is depressed.
・ Is the 4-pin motor connector inside the control box disconnected?
Press the power OFF switch and check the connection of the 4-pin motor
connector.
・ Has the sewing machine locked up?
Press the power OFF switch and then turn the machine pulley by hand and
check that it turns easily.
・ Problem with control box.
Replace the control box.
145
Instruction
manual
*
E131
Problem with
motor encoder
signal.
・ Is the 10-pin resolver connector inside the control box disconnected?
Press the power OFF switch, and then check that the 10-pin resolver connector
is connected to connector P6 on the main PCB.
・ Problem with motor or main PCB.
Replace the motor or the control box.
150-151
Instruction
manual
*
E132
Problem with
motor operation.
・ Problem with motor.
Replace the motor.
・ Problem with drive P.C. board.
Replace the control box.
*
*
E140
Motor reverse
operation
・ Motor reverse operation was detected.
Replace the motor.
132