8. TROUBLESHOOTING

Error code

Possible cause

Page

E090

・ Is the 3-pin treadle connector inside the control box disconnected?

 

Turn off the power switch, and then check that the 3-pin treadle connector is

 

Treadle

connected to connector P3 on the main PCB.

*

connector is not

・ Problem with treadle unit.

 

connected.

If there is a broken wire in the cord of the treadle connector, replace the treadle

**

 

unit.

 

 

 

 

E091

・ The settings in “Setting method for standard depression stroke” may be incorrect.

*

Redo the settings in “Setting method for standard depression stroke”.

 

・ Problem with treadle unit.

**

 

Replace the treadle unit.

 

 

 

E095

・ Was the power switch turned on 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.

*

 

 

 

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.

 

Turn off the power 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.

**

E112

・ The needle bar stops before the needle stop position (needle up or needle down).

 

Turn the pulley by hand and check that it does not turn stiffly.

 

 

Remove any thread scraps that may be stuck in the area around the rotary

 

 

hook.

 

 

・ Abnormal needle up signal

 

 

Turn off the power switch, and then check the connection of the 10-pin resolver

 

 

connector.

 

E113

・ Stopping could not be confirmed.

 

This error is displayed when the machine could not be immediately stopped

 

 

because of an abnormal load causing the machine speed to increase during a

 

 

stopping operation.

 

 

Turn the pulley by hand and check that it does not turn stiffly.

 

 

Remove any thread scraps that may be stuck in the area around the rotary

 

 

hook.

 

E130

The sewing machine or motor do not operate when the treadle is depressed.

 

・ Is the 4-pin motor connector of the control box disconnected?

 

 

Turn off the power switch and check the connection of the 4-pin motor

10*

 

connector.

 

・ Has the sewing machine locked up?

 

 

Turn off the power switch and then turn the machine pulley by hand and check

 

 

that it turns easily.

*

 

・ Problem with control box.

 

 

Replace the control box.

**

 

 

 

E131

・ Is the 10-pin resolver connector at the control box disconnected?

 

Turn off the power switch, and then check the connection of the 10-pin resolver

 

Problem with

connector.

10*

motor encoder

・ Problem with motor or main PCB.

 

signal.

Replace the motor or the control box.

**

 

 

 

 

 

E132

・ Problem with motor.

 

Replace the motor.

**

Problem with

・ Problem with main P.C. board

 

motor operation.

Replace the control box.

**

 

 

 

 

 

E140

・ Motor reverse operation was detected.

 

Replace the motor.

**

Motor reverse

 

 

operation.

 

 

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S-7000DD