Jack JK-T781E, Manual

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12、Error code
E12 Power on and no positioner
inserted
Automatically working in no-positioner mode, and cutting thread,
tangent, up positioning and all fixed needle sewing pattern
sewing functions have no effect. The motor can work normally.
（
check positioner
）
E13 Power module overheating
protection
Check the power module and cooling fin is good contact
E14 Encoder signal fault Check whether the encoder signal is right or change the encoder
E15 Power module abnormal
overcurrent production
Module driver efforts and head efforts are both closed. waiting for
restart
（
check power board function
）
E17 Head protection switch is not in
its position
Check the head position and the switch.
E18 Mechanical lock protect error
code
Check mechanical lock position and the switch.
E19 Big board protect error code Check the big board position and the switch.