2WA/2NJ/2RK
7-350
C0180: Machine serial number mismatch
The machine serial Nos. in the main PWB and the EEPROM on the engine PWB mismatch when turning the
power on.
3 Replacing the main PWB The main PWB is faulty. If the serial number at the
main is different at U004,
execute U004 after replacing
the main PWB.
Detaching
and reat-
taching the
main PWB
4 Checking the EEPROM on
the engine PWB
The EEPROM is faulty. If the serial number at the
engine is different at U004,
reinstall the EEPROM on the
engine PWB. If not repaired,
replace the EEPROM and
execute U004. Note: Please
do not execute U004 in con-
dition the serial number is dif-
ferent. (by selecting [Execute]
and pressing [Start] key). Dif-
ferent serial number will be
overwritten.
Executing
U004
5 Replacing the engine PWB The engine PWB is faulty. Replace the engine PWB. Detaching
and reat-
taching the
engine
PWB
Step Check description Assumed cause Measures Reference
1 Checking the machine
serial No. of the main PWB
The main PWB for the dif-
ferent main unit is
installed.
Check the machine serial
Nos of MAIN and ENGINE at
U004, and install the correct
main PWB if the MAIN No.
differs.
Executing
U004
2 Checking the machine
serial No. in the EEPROM
on the engine PWB
The EEPROM for the dif-
ferent main unit is
installed.
Check the machine serial
Nos of MAIN and ENGINE at
U004, and install the correct
EEPROM on the engine
PWB if the ENGINE machine
serial No. differs.
Executing
U004
3 Replacing the main PWB The main PWB is faulty. If the serial number at the
main is different at U004,
execute U004 after replacing
the main PWB.
Detaching
and reat-
taching the
main PWB
Step Check description Assumed cause Measures Reference
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