Brother LK3-B438E Instruction Manual download pdf (Page 55)

LK3-B438E Mark II

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from

the wall outlet before opening the face plate of the control box. Touching areas where high volt-

ages are present can result in severe injury.

Machine motor operation error.

E-13

E-20

E-21

E-30

E-32

E-31

E-40

E-41

E-42

E-50

E-60

E-61

E-62

E-63

E-70

E-80

E-81

E-82

E-90

E-91

Cause

Machine specification select connector is

not connected properly.

Problem with machine motor stopping, or

synchronizer connection error.

Data is outside possible sewing area due

to enlargement ratio setting.

The data format of the user program (% or

mm) does not match the setting of DIP

switch A-6.

After changing the setting of DIP switch A-6, clear

all memory settings. (Refer to “10-15. Clearing all

memory settings”.)

Stitch pattern data overlaps the sewing

area when area limiting is active.

Length of a stitch exceeds 10 mm.

Abnormality in the sewing data.

Invalid program number specified.

Needle bar does not stop when the needle

is raised.

Presser has not been lowered.

Presser cannot be raised.

Presser is not raised.

Presser cannot be lowered.

Cooling fan does not operate.

Motor PROM is not correctly inserted.

Foot switch was depressed when the

power was turned on.

An operation panel switch was depressed

when the power was turned on.

Abnormal drop in power supply voltage,

or power was turned on again

immediately after it was turned off.

Abnormal rise in power supply voltage.

Remedy

Turn off the power and check if connectors P3 is

disconnected.

Turn off the power, and then turn the machine

pulley to check if the machine has locked up. Check

the synchronizer connection. Check if connectors

P11, P12 and P13 are disconnected.

Turn off the power and check the ground wire

connection.

Press the RESET switch, and then set the

enlargement ratio again.

Press the RESET switch, and then reset the memory

switches “30” and “31” or enlargement ratio.

Press the RESET switch, and then set the

enlargement ratio again.

If programming a new sewing data, repeat the

procedure from the beginning.

Press the RESET switch and specify a correct

number.

Turn the pulley to align the index mark with the

needle up stop position. (Refer to “10-11. Adjusting

the needle up stop position”.) Check the V-belt

tension. (Refer to “3-14. Installing the V-belt”.)

Refer to “16. Troubleshooting”.

Turn off the power and check the connection of

presser sensor connector P1.

Turn off the power, and then check if the cooling

fan is blocked with scraps of thread.

Turn off the power and check.

Turn off the power and check the operation panel.

Check that all panel cords are normal.

Turn off the power and check the input voltage.

After turning off the power, wait 3 seconds or more

before turning it on again. (Refer to “10-14.

Checking the input voltage”.)

Turn off the power and check the input voltage.

(Refer to “10-14. Checking the input voltage”.)

Code

14. TABLE OF ERROR CODES

DANGER

If a malfunction should occur with the sewing machine, a buzzer will sound and an error code will appear in

the display window. Follow the remedy procedure to eliminate the cause of the problem.

14. TABLE OF ERROR CODES

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 61 62

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Brother LK3-B438E Instruction Manual Page 55

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