Fujitsu ASYG07LJCA Service Manual page 64

BRANCH BOX
UTP-PY03A
When an error occurs, an error description
displays in the LED (No.401 - 405).
Lit
(n)
Flashing (number of flashing)
Unlit
Green
LED401 LED402
Branch box
identifying
display
Primary
unit
: (1)
Secondary
unit1
: (2)
Secondary
unit2
: (3)
2010.10.29
Red
LED403
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
LED404 LED405
60
Comment
Combination error
Power supply frequency error
EEPROM access error
Model information error
Serial communication error between
Outdoor Unit and branch box
Serial communication error between
branch boxes
Serial communication error between
branch boxes
Serial communication error between
Indoor Unit A and branch box
Serial communication error between
Indoor Unit B and branch box
Serial communication error between
Indoor Unit C and branch box
Indoor Unit A, liquid pipe thermistor error
(CN309)
Indoor Unit B, liquid pipe thermistor error
(CN309)
Indoor Unit C, liquid pipe thermistor error
(CN310)
Indoor Unit A, gas pipe thermistor error
(CN309)
Indoor Unit B, gas pipe thermistor error
(CN309)
Indoor Unit C, gas pipe thermistor error
(CN310)
Indoor Unit A, expansion valve full closure
operation error (CN305)
Indoor Unit B, expansion valve full closure
operation error (CN306)
Indoor Unit C, expansion valve full closure
operation error (CN307)
Remote control communication error