11. ERROR CODES
RH-9820
121
Software-related errors
Items with a “*” in the “Page” column should only be checked by a qualified technician.
Code Cause
Remedy
Page
E569
Program version error between main and
motor detected.
Press the RESET key to clear the error.
*
This error is displayed when a power supply motor
P.C.board for a different model is installed.
Replace with the power supply motor P.C.B. for the
RH-9820 as soon as possible.
20*
E580
Error in EEPROM version detected.
Turn off the power and carry out level 3 initialization.
62
E581
Error in memory switch version detected.
Turn off the power and carry out level 2 initialization.
62
E582
Error in parameter data version detected.
Turn off the power and carry out level 1 initialization.
62
Device-related errors
Items with a “*” in the “Page” column should only be checked by a qualified technician.
Code Cause
Remedy
Page
E630
Lower thread trimmer does not operate,
or lower thread trimming sensor is faulty.
Turn off the power, and then check that the valve harness
connector and sensor connector are inserted at the main
P.C. board.
19*
E650
Hammer is lowered, or hammer position
sensor is faulty.
Turn off the power, and then check that the hammer valve
harness connector and hammer position sensor connector
are inserted at the main P.C. board.
19*
E651
Hammer is not lowered, or hammer
position sensor is faulty.
Turn off the power, and then check that the hammer valve
harness connector and hammer position sensor connector
are inserted at the main P.C. board.
19*
P.C. board-related errors
Items with a “*” in the “Page” column should only be checked by a qualified technician.
Code Cause
Remedy
Page
E700
Abnormal rise in power supply voltage.
Turn off the power and check the input voltage.
23*
E701
Abnormal rise in sewing machine motor
drive voltage.
Turn off the power, and then check the voltage.
20*
E705
Abnormal drop in power supply voltage.
Turn off the power and check the input voltage.
23*
E710
Abnormal current detected in sewing
machine motor.
Turn off the power, and then check if there are any
problems with the sewing machine.
*
E719
Problem detected with PMD P.C. board.
Turn off the power, and then check the PMD P.C. board.
20*
E740
Cooling fan does not operate.
Turn off the power, and then check that the cooling fan
sensor connector is connected at the main P.C. board.
19*
If an error code that is not listed above appears or if carrying out the specified remedy does not solve the problem, contact the
place of purchase.
Содержание RH-9820
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