15. ERROR CODES

15. ERROR CODES

DANGER

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the cover of the control box. Touching areas where high voltages are present can result in severe injury.

If a malfunction should occur with the sewing machine, a buzzer will sound and an error code will appear in the display window.

Follow the remedy procedure to eliminate the cause of the problem.

<Switch-related errors>

Code

Cause and remedy

Err 50

Tilted back sewing machine has been detected. Check the operation of the safety switch. Turn off the power

before tilting back the machine head.

 

Err 65

Operation panel key was being pressed or actuator switch was being pressed while the power was turned on,

or malfunction of a key. Turn off the power switch and check.

 

Err 90

Poor connection of treadle unit cord. Turn off the power switch and check.

Err 91

Problem with standard setting of treadle stroke. Readjust the treadle stroke to the standard setting.

Err 95

Treadle was being depressed when power was turned on. Turn off the power switch, set the treadle to the

neutral position and then turn the power back on.

 

<Upper shaft motor-related errors>

Code

Cause and remedy

Err 100

Turn off the power and apply grease, and then carry out the reset operation.

Err 101

DIP switch No.4 inside the control box is set to ON. Turn off the power and set DIP switch No.4 to OFF.

 

 

Err 111

Needle bar does not stop in the needle up position and thread wiper cannot operate. Check the needle bar

position.

 

 

Sewing machine motor does not operate. Motor 4P connector is not connected correctly, sewing machine is

Err 130

locked, or malfunction of control devices. Turn off the power switch, and check the motor 4P connector or turn

 

the pulley and check if it turns stiffly.

 

Encoder connector (P13) of sewing machine motor is not connected correctly, or malfunction of encoder P.C.

Err 131

board.

 

Turn off the power switch and check.

Err 132

Sewing machine motor is operating abnormally. Malfunction of encoder P.C. board, or encoder connector

(P13) of sewing machine motor is not connected correctly. Turn off the power switch and check.

 

Err 150

Sewing machine motor is overheating abnormally. Displayed when the temperature protection has been

activated. After the temperature has dropped, turn the power back on.

 

Err 151

Temperature sensor of sewing machine motor is not connected correctly. Turn off the power switch and check.

Err 190

Sewing machine motor has operated continuously for 3 minutes or more. Sewing machine motor overtime

error. Turn off the power switch and then turn the power back on again.

 

Err 191

Thread trimmer solenoid overtime error. (Thread trimming was not completed.)

<Feed mechanism-related errors>

Code

Cause and remedy

 

Needle zigzag motor home position cannot be detected. Needle zigzag motor connector is not connected

Err 200

correctly to the needle zigzag encoder connector, or problem with needle zigzag motor. Turn off the power

 

switch and check.

Err 201

Needle zigzag motor stopped due to a problem. Turn off the power switch, move the needle bar sideways and

check that it does not move stiffly.

 

Err 202

Problem with needle zigzag motor home position adjustment data. Re-adjust the home position.

Z-8550A, 8560A

114