Brother KE-434C Instruction Manual page 71

Code
E-80 Motor PROM is not correctly inserted.
Foot switch was depressed when the power was
E-81
turned on.
An operation panel switch was depressed when the
E-82
power was turned on.
Abnormal drop in power supply voltage, or power
E-90 was turned on again immediately after it was turned
off.
E-91 Abnormal rise in power supply voltage.
Home position cannot be detected (malfunction of
home position sensor), or malfunction of power
E-A0
supply circuit board.
You tried to change the program number when DIP
E-b0
switch A-8 was set to ON.
E-b1 No sewing data available.
E-d0 Heat sink of control circuit board is abnormally hot.
Malfunction of EEPROM (malfunction of main circuit
E-E0
board).
Corrupted EEPROM data, or main PROM version
E-E1
has been upgraded.
E-E2 Corrupted EEPROM control information data.
Solenoid or feed motor short-circuit (malfunction of
E-F0 main circuit board), or power relay is not operating
(malfunction of power supply circuit board).
Bad connection in cable between power supply
E-F1
circuit board and main circuit board.
Abnormal current detected in power supply circuit
E-F2
board.
<Errors generated when optional equipment is connected>
Code
E-14 Thread breakage detected.
E-15 Air pressure drop error.
E-16 Bobbin thread sensor mechanism error
REFERENCE segment LED alphabet
Panel display
Text display
Cause
Cause
A b c
Turn off the power and check.
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 "10-13. Checking the input voltage".)
Turn off the power and check the input voltage.
(Refer to "10-13. Checking the input voltage".)
Turn off the power and check the connection of home
position sensor connector P1.
Press the RESET switch. Set DIP switch A-8 to OFF before
trying to change the program number.
Replace the PROM with one which contains sewing data.
Turn off the power and clean the air intake port of the box.
Turn off the power, and turn it back on. If the error continually
occurs, contact a qualified service technician.
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.
Turn the EMERGENCY STOP switch clockwise to release
the lock, and then press the RESET switch to reset the error.
You can then press the BOBBIN. WIND switch to repeat the
sewing.
Turn off the power and check. If drops in air pressure are not
being detected, clear all memory settings and then set the
memo-1d switch to OFF.
Turn off the power and check. If the bobbin thread amount is
not being detected, clear all memory settings and then set
the memo-24 switch to OFF.
d E F
KE-434C,435C
15. TABLE OF ERROR CODES
Remedy
Remedy
6 H L O
65