Repeat juki sc-1 fb

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

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]

Try searching for:

Make Model error code E9

It may give you an idea of where the problem is.

hello
regarding error code E808 mostly happened in SC-920 control:
1- check +33 DC volt output for thread trimmer - bac-ktack- presser foot lifter.
2- check CTL board. ( any electronic components damage )
the most reason for E808 coming from CTL board.
best regards
ASHRAF ABOZID
[email protected]
Cairo - Egypt

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

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

Juki America Dependable Quality in Home Sewing

There may be more to you Model number SC-1. Here is a list of all Juki Manuals:

JUKI Sewing Machine manuals

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]

email the sewvacdoctor.com & see if they can help with the code