A&D GF-A Series, Maintenance Manual

Page: 16 / 52

GX-A/GF-A Maintenance manual
Page 14
Problem Cause Check Solution Type
E
e
rror 8
EEPROM
error
CPU (U1)
and
EEPROM
(U9) on the
main board
The EEPROM version is not
correct
for the newer CPU
version.
Press the PRINT key to change
the EEPROM version.
F
E
e
rror 9
EEPROM
format error
CPU (U1)
and
EEPROM
(U9) on the
main board
EEPROM has not been initialized. While holding down the
RE-ZERO and MODE keys,
press the PRINT key to initialize
the EEPROM.
C
Cal
e
-Cal
e
Calibration
range error
The mass
exceeds
the
calibration
range
Check that the correct mass is
used for calibration. Use the correct mass.
F
Analog
board
assembly,
coil, zero or
span Check the D0 value. If the D0 value is not within the
specifications, replace parts and
reassemble. (When the D0 value
is correct, perform calibration in
check mode)
A
Defective
pump(Only
GX-A) Check the pump.
Replace the pump or pump
control board.
F
Defective
solenoid
valve(Only
GX-A) Check the solenoid valve. Replace the solenoid valve or
pump control board.
F
E
e
Overload
Weighing
error
relating to
calibration
Check the D0 value When the D0 value is correct,
perform calibration in check
mode, then perform calibration
in the weighing mode
F
Damage in
flexures Check the D0 value If the D0 value is not within the
specifications, replace flexures
and reassemble
A
-
e
Underload
Weighing
pan Check if the correct pan is used
and that the pan is installed
correctly Use the correct pan and install it
correctly
F
Weighing
error
relating
to
calibration
Check the D0 value When the D0 value is correct,
perform calibration in check
mode, then perform calibration
in the weighing mode
F
Damage in
flexures Check the D0 value If the D0 value is not within the
specifications, replace flexures
and reassemble
A