Brother KE-430HX Service Manual page 219

Error status #18 Error code appears on the display after the machine operates.
Probable causes
1. If "E111", "E130", "E131", "E132" or
"E133" is displayed
sewing machine operates, there is
a poor connection of the machine
motor encoder.
2. If "E111", "E130", "E131", "E132" or
"E133" is displayed
sewing machine operates, there is
a poor connection of the machine
motor.
3. If "E111", "E130", "E131", "E132" or
"E133" is displayed
sewing machine
interference is causing operating
errors.
4. If "E111", "E130", "E131", "E132" or
"E133" is displayed
sewing machine operates, there is
a malfunction of the power supply
motor PCB.
5. If "E111", "E130", "E132"or "E133"
is displayed after
machine operates,
malfunction of the power supply
motor PCB or of the machine
motor.
6. If "E121" is displayed after the
sewing machine operates, there is
a malfunction of a component.
7. If "E121" is displayed after the
sewing machine operates,
home position is
adjusted.
8. If "E121" is displayed after the
sewing machine operates, there is
a problem with the operation of the
thread trimmer pulse motor.
Check that connector P4 (MN-MT) of the power
after the supply motor PCB and connector P23 (MOTOR)
of the main PCB are inserted.
Check the connection of the relay connector
after the between the machine motor and the power supply
motor PCB.
Check that the ground wire is securely connected
after the and that the sewing machine is not close to any
operates, equipment
interference.
Refer to steps 1 to 4 in #6.
after the
If an error occurs after inspection steps 1 to 4
the sewing above have been carried out, there is a
there is a malfunction of the machine motor.
Check if the blades of the fixed knife and movable
knife are damaged or worn.
Adjust the home position while referring to "9-18.
the Adjusting
incorrectly position".
Refer to steps 3 to 6 in #10.
KE-430HX/KE-430HS, BE-438HX/BE-438HS
Check/ repair/ adjust
that generates strong
the main shaft motor
14. ELECTRIC MECHANISM
Parts to be replaced
electrical
Power supply motor PCB
assembly
Motor 430 assembly
reference
Power supply motor PCB
assembly
Main PCB assembly
Pulse motor T assembly
208