Owner's Manual

10. ERROR CODES
RH-9820
112
Communication and memory-related errors
Items with a “*” in the “Page” column should only be checked by a qualified technician.
For items with “**” appearing in the “Page” column, ask the place of purchase for advice.
Code Cause Remedy Page
E401
Connection error detected between the
main P.C. board and power supply motor
P.C. board when the power was turned
on.
Turn off the power, and then check that connector P17 on
the main P.C. board and connector P6 on the power
supply motor P.C. board are properly connected.
19*
20*
112*
E403
Communication error detected between
the main P.C. board and PMD P.C. board
when the power was turned on.
Turn off the power, and then check that connector P16 on
the main P.C. board and connector P1 on the PMD P.C.
board are properly connected.
19*
20*
112*
E410
Communication error between main P.C.
board and panel P.C. board detected.
Turn off the power, and then check that the operation
panel connector is connected at the main P.C. board.
19*
E411
Communication error between main P.C.
board and power supply motor P.C. board
detected.
Turn off the power, and then check that connector P17 on
the main P.C. board and connector P6 on the power
supply motor P.C. board are properly connected.
112*
E420
No CF card is inserted.
(No messages are displayed.)
Turn off the power, and then insert a CF card into the CF
card slot of the control box.
**
E422 Error occurred while reading CF card. Check the data on the CF card.
**
E424 Insufficient free space on CF card. Use a different CF card.
**
E425 Error occurred wile writing to CF card. Use the specified type of CF card.
**
E430
Problem with flash memory on main P.C.
board.
Turn the power off and then back on again.
38
E440
Problem with EEPROM on main P.C.
board.
Turn the power off and then back on again.
38
E450
Model selection cannot be read from the
machine head memory.
Turn off the power, and check the connection of the
machine head memory connector at the power supply
motor P.C. board.
20*
E451
Data cannot be backed up to machine
head memory.
Turn the power off and then back on again.
38
E480 Problem with RAM on main P.C. board. Turn the power off and then back on again.
38
[P.C. board and connector positions]
Power supply P.C. board PMD P.C. board Main P.C. board
0535B