50
Warning Sign
Cause
Try this
1. The start/stop button is pressed with the foot control
connected.
2. The foot control is out of order.
(The foot control sign keeps blinking.)
Disconnect the foot control.
Contact the service center
or the store from whom the
machine was purchased.
The machine is started the with the presser foot raised. Lower the presser foot and
start the machine again.
The bobbin winder spindle is shifted to the right.
Shift the bobbin winder
spindle to the left for stitching.
The machine will stop if the buttonhole is sewn without
lowering the buttonhole lever.
Lower the buttonhole lever
and start the machine again.
The machine is started after halting due to overload.
Wait for at least 15 seconds to
restart.
Turn the power switch OFF.
Remove tangled threads around
take-up lever, hook race.
(E1-E7)
The machine does not work properly due to a problem
in the control circuit.
Contact the service center
or the store from whom the
machine was purchased.
It is not abnormal that a faint humming sound comes out from inside the machine.
LCD display may get warm when the machine has been used for hours.
Audible Signal
The Buzzer sounds when:
pip
Normal operation.
pip-pip-pip
Invalid operation or malfunction.
peep
E1-E7 error occurred.
pip pi-pi-pi-peep
Buttonhole is completed.
Problems and Warning Signals
If a buzzer sounds and the LCD display shows a warning sign, follow the guidance below.
Summary of Contents for M50QDC
Page 1: ...Instruction Book...
Page 2: ......
Page 54: ...52 Stitch Chart...
Page 55: ......
Page 56: ...812 800 135 EN...
