Main motor turning the wrong way. The control box sees the main motor rotating in reverse or irregularly, usually because the motor connections are wrong or broken.
Shown on JUKI machines including 210E, AMS-210E, AMS-210EN, AMS-221EN, AMS-224EN, AMS-251, AP874, AP876, APW-895N, APW-896N, DDL-8700B, DDL-9000CF and others.
What to check
- Check the motor power connections (CN16 on the SDC board) are correct and tight.
- Check the servo motor circuit as the engineer manual describes.
Switch the machine off before touching any connector. If the code comes back after these checks, the fault is usually in the servo motors or control boxes, PCBs and sensors.
Request a repair for this error or WhatsApp the code and your model to +91-9643480908 (Monday to Saturday, 10:00 AM to 8:00 PM (closed Sunday)).
Source
Summarised by Shankar Sewing from the LK-1900A engineer manual (page 109); AB-1351 instruction manual (page 125); ASN-690 instruction manual (page 50); DDL-8700B instruction manual (page 50); DDL-9000CF instruction manual (page 72). The manual has the complete procedure and connector numbers for your exact model.
Other JUKI error codes
E007 Motor overload · E011 External media not inserted · E012 Read error on external media · E013 Write error on external media · E015 Sewing area exceeded · E016 External media full · E019 File size over · E032 File not compatible · E302 Machine head tilt detected · E303 Main shaft Z-phase sensor error · E703 Panel connected to the wrong machine · E704 System version mismatch · all JUKI codes
Frequently asked questions
What does JUKI error E733 mean?
Main motor turning the wrong way. The control box sees the main motor rotating in reverse or irregularly, usually because the motor connections are wrong or broken.
How do I fix JUKI error E733?
Check the motor power connections (CN16 on the SDC board) are correct and tight. Check the servo motor circuit as the engineer manual describes. If the code stays, the fault is usually in the servo motors or control boxes, PCBs and sensors.
Which JUKI machines show E733?
In the manuals we have read, E733 appears on 210E, AMS-210E, AMS-210EN, AMS-221EN, AMS-224EN, AMS-251, AP874, AP876, APW-895N, APW-896N and other models.