Brother KE-430B Service Manual page 176

8. ELECTRIC MECHANISM
Code
Corrupted EEPROM data, or main PROM
E-E1
version has been upgraded.
E-E2 Corrupted EEPROM control information data.
Solenoid
(malfunction of main circuit board), or power
E-F0
relay is not operating (malfunction of power
supply circuit board).
Bad connection in cable between power
E-F1
supply circuit board and main circuit board.
Abnormal current detected in power supply
E-F2
circuit board.
[KE-436B, 436C]
Code
E.10
Emergency stop switch was pressed.
Emergency stop switch was pressed during
E.11
sewing.
Emergency stop switch is activated or its
E.12
connection is not correct.
Defective connection of model selection
E.13
connector.
Foot switch was depressed, or connection of
E.14
foot switch is defective.
Start switch was depressed, or connection of
E.15
start switch is defective.
E.16
Machine head was tilted back.
Operation panel switch was depressed when
E.17
power was turned on.
Motor malfunctions or synchronizer is not
E.20
connected correctly. Or thermostat inside
sewing machine motor has operated.
E.21
Motor malfunctioned.
E.22
Needle up stop position error.
Data exceeds available sewing area due to
E.30
resize ratio.
Stitch length exceeds 10mm due to resize
E.31
ratio.
E.32 No end code in sewing data.
169
Cause
or feed motor short-circuit
Cause
KE-430B, 430C series
Remedy
Press the RESET switch to reset the error. However,
the data (memory switches, display and user
programs) will be reset to the backup data or
initialized.
Press the RESET switch to reset the error. However,
the data (memory switches, display and user
programs) will all be initialized.
Turn off the power and contact a qualified service
technician.
Turn off the power and check if connectors P16 is
disconnected.
Turn off the power and contact a qualified service
technician.
Remedy
Turn the EMERGENCY STOP switch clockwise to
release the lock, and then press the STEP BACK
(RESET) switch to reset the error.
Turn the EMERGENCY STOP switch clockwise to
release the lock, and then press the STEP BACK
(RESET) switch to reset the error. You can then
press the STEP BACK (RESET) switch to repeat
the sewing.
Turn off power and check it.
Turn off power and check connector P3.
Turn off power and check it.
Turn off power and check it.
Turn off power and tilt machine head back.
Turn off power and check it.
Turn off power, and then turn the machine pulley to
check if the machine has locked up. Check the
synchronizer connection, and connectors P11, P12
and P13.
Check if the sewing machine motor has overheated.
Turn off power and check ground wire connection.
Turn pulley to align timing mark with that on belt
cover.
Adjust resize ratio.
Adjust resize ratio.
Input end code, or change program No.