I have an error E 731 an a Juki sc 510

There is a problem with the motor. Check your connections of wiring and such to make sure they are secure. The problem might be the brushes or might be the circuit board to the motor. Look for signs of damage or wear on that main circuit board. If found, replace the board. If the problem is not then resolved, you might contact Juki customer support. This is not an inexpensive machine. https://jukiamericas.com/pages/support

https://www.citysewingmachine.com/products/juki-ddl-5550n-7-lockstitch-machine-setup-on-table-servo-motor-stand.html

https://www.manualslib.com/manual/940610/Juki-Ddl-5550n-7.html

Question edited for correct name of the maker 'judi' to 'Juki'.
Question moved from Office Equipment.

Motor Failure.

https://www.google.com/search?q=juki+5550-6+e7+error

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Page 42 of the Service Manual shows both Errors 25 and 26. Talking of Errors, I fixed all the errors in the question to British English :>)

ENGINEER'S MANUAL - Superior Sewing Machine & Supply ...

www.supsew.com > download > Juki > Juki SC1

PDF mJUKI. 3C-1. SC-2. CP-30 'CP-ISO. CP-230'CP-330. ENGINEER'S MANUAL. 4-. 1.. caoo <r £• ... 24. 14) Number of revolutions at low speed. 25. 15) Number of revolutions for thread trimming. 25 ... 26) Needlebar up/down position retaining function. 32 ... EXPLANATION OF ERRORS AND CORRECTIVEMEASURES. 38. 6.

have a good day
concern Error E004 can you please tell me the control Box model? generally E004 means:
1-Synchronizer lower position sensor failure ( SC-500 / SC-510 )
cause :
======
• When position detection signal is not input from the sewing machine head synchronizer.
• When the synchronizer has broken.
points check:
==========
• Check the synchronizer connector (CN33) for
loose connection and disconnection.
• Check whether the synchronizer cord has broken
since the cord is caught in the machine head.
otherwise make sure first connection for synchronizer connected securely.
best regards
ASHRAF ABOZID
CAIRO - EGYPT
[email protected]

Usually there is an Error Code List in the manual.


JUKI Sewing Machine Instruction Manual Error Code List


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Hi Mohamed
regarding Error E 071 of SC-810 control please check :
1- thread trimmer cam correct adjusted or not.
2- there is a lot of thread into motor pulley or machine pulley.
3- if error E 071 coming immediately when turn power ON means problem inside control box, to confirm that please put working control box on machine , if error remove means problem at control box.
best regards
ASHRAF ABOZID
[email protected]
CAIRO - EGYPT

This Manual is for a similar numbered machine. Does it look like yours?
JUKI SC 510 Instruction Manual

contact juki,, here is a link,, see what they say

Juki America Dependable Quality in Home Sewing

hi there,
regarding LH-4128SF JUKI double needle machine error E303, if you are using control model SC-920, SC-921 it means E303 Semicircular plate sensor
error
• Semicircular plate sensor signal cannot
be detected.
• Check w h e t h e r t h e mach ine head
corresponds with the machine type setting.
• Check whether the motor encoder connector
is disconnected.
if still error E303 coming please contact me.
best regards
ASHRAF ABOZID
CAIRO - EGYPT
[email protected]

E13 is appearing on the panel of sc 800 control box
no such error is listed on the instruction manual please advise