JUKI LBH-1790S Instruction Manual page 87

Error code
E918 Abnormality of temperature of heat sink for main
control p.c.b.
When temperature of heat sink of main control p.c.b. is
85°C or more.
E943 Defectiveness of EEP-ROM of main control p.c.b
When data writing to EEP-ROM is not performed.
E946 Defectiveness of writing to EEP-ROM of head relay
p.c.b.
When data writing to EEP-ROM is not performed.
E998 Presser deviation error
In the case the presser foot fails to go up when the pedal
is released or when the sewing is finished.
Turn the power OFF. Check whether the work clamp can
be lifted/lowered manually.
During the aforementioned check, be careful about the
needle and the knife.
E999 When cloth cutting knife does not return
• When cloth cutting knife does not return after the lapse
of predetermined time.
• When sensor is not turned ON while cloth cutting knife
is raising (at the time of waiting).
Description
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How to recover Place of recovery
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.