Fujitsu ABY30TBAG Service Manual page 7

Models : ABY54TBA3W / AOY54TPA3L
1. INDOOR UNIT
Operation can be checked by lighting and flashing of the
display section OPERATION, TIMER, and VERTICAL SWING
lamps.
Perform judgment in accordance with the following.
SWING SWING TIMER OERATION
TEST RUNNING
When the air conditioner is run by pressing the remote control
unit test run button, the OPERATION, TIMER, and VERTICAL
SWING lamps flash slowly at the same time.
ERROR
The OPERATION, TIMER, and VERTICAL SWING lamps
operate as follows (Table 1) according to the error contents.
Error contents
Indoor EEPROM abnormal
Outdoor EEPROM abnormal
Indoor room temperature sensor
open
Indoor room temperature sensor
short-circuited
Indoor heat exchanger
temperature sensor open
Indoor heat exchanger
temperature sensor short-circuited
Float switch operated
Indoor signal abnormal
Outdoor signal abnormal
Indoor fan abnormal
Outdoor power source connection
abnormal
Outdoor heat exchanger
temperature sensor open
Outdoor heat exchanger
temperature sensor short-circuited
Outdoor temperature sensor open
Outdoor temperature sensor
short-circuited
Outdoor discharge pipe
temperature sensor open
Outdoor discharge pipe
temperature sensor short-circuited
Outdoor high pressure abnormal
Outdoor discharge pipe
temperature abnormal
O : 0.1s ON / 0.1s OFF (flash)
: 0.5s ON / 0.5s OFF (flash)
2003.12.12 PRELIMINARY
VERTICAL SWING lamp (Orange)
TIMER lamp (Green)
OPERATION lamp (Red)
MANUAL
AUTO
Table 1
Error display
OPERATION TIMER
VERTICAL SWING
lamp lamp
O O
O O
(2 times)
O
(2 times)
O
(3 times)
O
(3 times)
O
(4 times)
O
(5 times)
O
(5 times)
O
(6 times)
O
(2 times)
O
(3 times)
O
(3 times)
O
(4 times)
O
(4 times)
O
(5 times)
O
(5 times)
O
(6 times)
O
(7 times)
O
X : OFF
2. OUTDOOR UNIT
When the outdoor temperature drops, the outdoor unit's fans
may switch to low speed, or one of the fans may stop
intermittently.
ERROR : Reverse cycle only
The LED lamps operate as follows (Table 2) according to the
error contents.
Error contents
Signal abnormal
Indoor unit abnormal
Discharge pipe
temperature abnormal
Outdoor heat exchanger
temperature abnormal
Outdoor temperature
abnormal
Power source
connection error
EEPROM abnormal
lamp
X
Outdoor high pressure
O
abnormal
Discharge pipe
X
temperature abnormal
O
: 0.5s ON / 0.5s OFF (flash)
: 0.1s ON / 0.1s OFF (flash)
X
When the fault is cleared, the LED lamp goes off.
O
However, for discharge pipe temperature abnormal and high
pressure abnormal, the LED lamp lights continuously for 24
X
hours, as long as the power is not turned off.
X
O
ERROR LED DISPLAY LAYOUT
X
X
X
IC
O
X
O
X
O
X
X
CN14
6
Table 2
LED1 LED2 LED3 LED4 LED5 LED6
: OFF
: Indefinite
TEST