Jack C4 Training Courseware page 48

Operation instructions-
Presser foot safety
E6
switch wrong position
Sewing bed safety
E7
switch wrong position
Needle bar safety
E8
switch wrong position
Pedal connection
E9
problem
E10 Hardware over current
Error number form
Pls check whether the presser foot back to the correct position or
not；if not working, pls change the value number 1 to 0 of P57；if
cannot solve the problem, pls contact the local agent.
Pls check whether the sewing bed back to the correct position or
not；if not working, pls change the value number 1 to 0 of P58；if
cannot solve the problem, pls contact the local agent.
Pls check whether the sewing bed back to the correct position or
not；if not working, pls change the value number 1 to 0 of P59；if
cannot solve the problem, pls contact the local agent.
Pls check whether the connection of pedal and control box loose or
not；if cannot solve the problem, pls contact the local agent.
Pls check the voltage；pls reset the machine or restart；if cannot
solve the problem, pls contact the local agent 。