List Of Symptoms - Brother 888-H72 Operating Manual

Troubleshooting

List of symptoms

■ Getting ready
Symptom
Needle is not in the correct position.
Needle is installed incorrectly.
Needle is turned, bent or the point is dull.
Upper threading is incorrect.
Cannot thread the
needle.
The needle threader hook is bent and does not
pass through the eye of the needle.
The needle threader lever cannot be moved or
returned to its original position.
A size 65/9 needle is being used.
The thread is not passed through the bobbin
winding thread guide correctly.
Bobbin thread
Bobbin spins slowly.
does not wind
neatly on the
The thread that was pulled out was not wound
bobbin.
onto the bobbin correctly.
The empty bobbin was not set on the pin
properly.
While winding the
You have not wound the bobbin thread properly.
bobbin, the bobbin
While initially winding thread on the bobbin the
thread was wound
bobbin thread is not properly inserted into the
below the bobbin
guides.
winder seat.
Needle is turned, bent or the point is dull.
The bobbin thread
cannot be pulled
Bobbin is set incorrectly.
up.
Main power switch is not turned on.
The plug of the power cord is not inserted into
Nothing appears in
an electrical outlet.
the LCD.
The brightness of the LCD is either too light or
too dark.
The LCD screen is
Condensation has formed on the LCD screen.
fogged up.
The operation keys
A glove is worn when the keys are pressed.
do not respond.
The keys are pressed with a fingernail.
A non-electrostatic touch pen is being used.
The operation keys
The sensitivity of the operation keys is not set
do not respond, or
for the user.
the sensitivity is
too strong.
A-12
Probable Cause Remedy
Press the "Needle position" button to raise the
needle.
Reinstall the needle correctly.
Replace the needle.
Check the steps for threading the machine and
rethread the machine.
Contact your authorized Brother dealer or the
nearest Brother authorized service center.
Contact your authorized Brother dealer or the
nearest Brother authorized service center.
The needle is incompatible with the needle
threader. Manually pass the thread through the
eye of the needle.
Correctly pass the thread through the bobbin
winding thread guide.
Move the sewing speed controller to the right
so that the speed will be increased.
Wind the thread that was pulled off around the
bobbin 5 or 6 times clockwise.
Set the empty bobbin on the pin and slowly turn
the bobbin until you hear it click in place.
After removing the thread wound below the
bobbin winder seat, wind the bobbin correctly.
Follow the drawn images on the top of the
machine for guidance when threading the
machine for bobbin winding.
Replace the needle.
Reset the bobbin correctly.
Turn the main power to ON.
Insert the plug of the power cord into an
electrical outlet.
Adjust the brightness of the LCD.
After a while, the cloudiness will disappear.
Directly touch the operation keys with your
finger.
When using a commercially available touch pen,
make sure that it is compatible with capacitive
sensing.
Adjust the sensitivity of the operation keys.
Reference
B-3
B-29
B-29
B-21
–
–
B-24
B-15
B-15
B-15
B-15
B-15, A-10
B-29
B-18
B-10
B-10
A-20
–
B-4
B-14