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Juki lk1903b machine is not working E7 is appers

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regarding JUKI LK-1903B Eror E7:
1-Machine lock error ( The main shaft of the sewing machine does not rotate due to some troubles ). please check if machine rotate smoothly by hand or not.
2-main motor problem ( AC servo motor problem ) motor part No.:401-38137.
3- check connection CN-15 / CN-17 from SDC board to main motor.
4 - problem in SDC servo board ( No output for main motor ). SDC servo board part No.:401-42267.
best regards

Posted on Apr 13, 2015


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1 Answer

What does error E7 mean on juki lk-1900 AN sewing machine

turn off the power switch and remove the cause of problems

Mar 22, 2016 | Juki Sewing Machines

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My Juki sewing machine DDL5550-6 showed E7 earlier and then now no power at all that all the fused and power source checked are ok, what is wrong for it ? Please help

hello there
regarding E 7 depends on control type, any way please check if power source coming to machine first then check all fuses is OK or blown , if need more help just tell me control box model or email me at , i will try to do the best to help you.
best regards

Feb 26, 2015 | Juki Sewing Machines

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The first thing to try is the fuse. The best way to do this is swap the machine's fuse with that in your kettle's plug - this should also be 13 amps as on your machine.
Also, it is possible that there has been a power cut; even though these are rare they can happen, so do not dismiss this possibility.
The final thing to try is to move the cable and see if the machine will come on. If the machine comes on then you will need to contact the manufacturer for advice about their repair service

Dec 13, 2013 | Juki DDL-8300

1 Answer

Hi there my juke is coming up with e7 when i put the my foot down on the pedal can anyone help with this thank you

The model number of your Juki would help. In the mean time google the phrase

Juke (model number) error codes

Oct 27, 2013 | Sewing Machines

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Aug 03, 2013 | Juki Sewing Machines

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How solve Juki DDL 8700 automatic single needle machine E-7 error?

hi there,
1- check V belt if there's more loose plase make it tight littel.
2- check timming cam for thread trimmer , sometimes lock after trim and E7 appear.
please advice me type for control box ? i can give more help if you have basic knowledge for electronc. just email me if you want any time.
best regards
ashraf abozid

Jul 28, 2011 | Juki DDL-8700

1 Answer

My machine will not sew just came up on the electronics E 7

hi there
concern ERROR ( E7 ) means Disconnection of motor output connector.

-check wthether there is holdup when turning the moor by hand.
-check the machine head is locked?
please check the motor output connector for loose connection and disconnection. if coming when Power ON immediately means control defective.

if you need more help please contact me.

Apr 26, 2011 | Juki DDL-8300

1 Answer

We purchased 7 Juki DDL8700 machines and every one of them is popping up with error codes ranging from: E7, E10, E003, E004, E005, E072 and E303. Please help.

hi there
concern E003-004-005 is same solution: check synchronize r need to clean or replace.
concern E7 : trimmer is jammed or timing cam for thread trimmer need to adjust other ways control need to check by electronic engineer.
concern E072 : check connection between motor and control - check sensor for motor ( inside ) - control need to check by electronic engineer.
concern E303 : check whether there is coincidence between head and model setup ( check function No. 95 and make sure it's dl78.
if you need any help please contact me.

Apr 21, 2011 | Juki DDL-8700

1 Answer

Hello. My sewing machine DDL 5550-6 display shows the problem. E7. What is it? And how do I fix it? Thank you

concern E7 there's many reasons :
1- machine jamd ( try to turn machine by hand if you found handwheel is move easy ok.
2- thread trimmer locked or release? sometimes E007 come at the time of thread trimming function activated.( please check timming cam for thread trimmer ).
3- sometimes some threads go insaide hook and machine stop and give E7.
best regards
ashraf abozid

Mar 30, 2011 | Juki DDL-8700

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