Brother KE-430F Service Manual page 175

Communication and memory-related errors
Code
Communication error detected between the main PCB and the panel PCB when the power was turned on.
E400 Turn off the power, and then check that connector P1 on the panel PCB and connector P3 on the motor PCB are
properly connected.
Communication error detected between the main PCB and the motor PCB when the power was turned on.
E401 Turn off the power, and then check that connector P5 on the main PCB and connector P2 on the motor PCB are
properly connected.
Communication error between main PCB and panel PCB detected.
E410
Turn off the power, and then turn it back on again.
Communication error between main PCB and motor PCB detected.
E411
Turn off the power, and then turn it back on again.
No media is inserted.
E420
Press the RESET key (*1) to clear the error.
Data contents are incorrect and cannot be used, or no data.
E421 Press the RESET key (*1) to clear the error.
Check that data for this pattern number is present in the media.
Error occurred while reading from media.
E422 Press the RESET key (*1) to clear the error.
Check the data in the media.
Insufficient space in media.
E424 Press the RESET key (*1) to clear the error.
Use different media.
Error occurred while writing to media.
Press the RESET key (*1) to clear the error.
E425
Use the specified type of media.
Check if the media is write-protected and if it has enough free space.
A pattern registered in a cycle program has been erased.
E427 Press the RESET key (*1) to clear the error.
Re-register the cycle program, or add the pattern.
A pattern registered in a program has been erased.
E428 Press the RESET key (*1) to clear the error.
Re-register the program, or add the pattern.
Data cannot be backed up to main PCB.
E430
Turn off the power, and then turn it back on again.
Data memory error on main PCB.
E440
Turn off the power, and then turn it back on again.
Model selection has not been loaded from the machine head memory.
E450
Turn off the power and check that connector P16 on the main PCB is properly connected.
Machine head memory is not connected.
E452
Turn off the power, and then check that connector P16 on the main PCB is properly connected.
Internal memory is full and copying is not possible.
E474 Press the RESET key (*1) to clear the error.
Clear any unnecessary additional patterns.
(*1) If the main PCB version is 1.5.00 or later, press the key or switch which has been set by memory switch No. 650.
Cause and remedy
KE-430F, BE-438F
16. TABLE OF ERROR CODES
165