Fujitsu AOYG45LAT8 User Manual page 62

2-3-6 Error status for Branch Box Display
When an error occurs, an error description displays in the LED (No.401 - 405).
(n)
Flashing (number of flashing)
Green
LED401 LED402
(1)
(2)
(3)
Branch box
identifying
display
(4)
Primary
(5)
unit
: (1)
Secondary
(6)
unit1
: (2)
Secondary
(7)
unit2
: (3)
(8)
(9)
Lit
Unlit
Red
LED403 LED404
Comment
LED405
Connected combination error
Power 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, EEV control error (CN305)
Indoor Unit B, EEV control error (CN306)
Indoor Unit C, EEV control error (CN307)
Remote controller communication error
02-13
Trouble
shooting
37
38
39
40
41
1
1
1
1
1
1
42
43
44
45