Error Contents; Indoor Unit; Outdoor Unit; Error Led Display Layout - Fujitsu ARG45ALC3 Service Manual

Models : AR 45ALC3 / AO

1. INDOOR UNIT

• When EE : EE blinks at the current time display, there is an
error inside the air conditioner. If the SET TIME button (
and TEMP./DAY button (
more than three seconds, the self diagnosis check will start
and the error contents will be displayed at the current time
display. When the operation lamp lights, press the
START/STOP button and after operation lamp goes off,
perform the same operation. Process the error contents by
referring to (Table 1).
NON STOP CLOCK TEMP
AUTO
HIGH
COOL
1 2
DEFROST
TIMER SET TIME TEMP./DAY FAN
MODE CONTROL
MASTER
CONTROL
CLOCK ADJUST
ZONE ENERGY SAVE START/STOP
SET DAY OFF
Stop operation.
Table 1
Error code
Communication error
(indoor unit
Communication error
(indoor unit
Room temperature sensor open
Room temperature sensor short-circuited
Indoor heat exchanger temperature sensor open
Indoor heat exchanger temperature sensor short-
circuited
Outdoor heat exchanger temperature sensor
open
Outdoor heat exchanger temperature sensor short-
circuited
Power source connection error
Float switch operated
Outdoor temperature sensor open
Outdoor temperature sensor short-circuited
Discharge pipe temperature sensor open
Discharge pipe temperature sensor short-circuited
Outdoor high pressure abnormal
Discharge pipe temperature abnormal
Model abnormal
Indoor fan abnormal
Outdoor signal abnormal
Outdoor EEPROM abnormal
• To stop test running, press the START/STOP button.
• For the operation method, refer to the operating manual and
perform operation check.
• Check that there are no abnormal sounds or vibration
sounds during test running.
E R R O R
45APA3L, AR
) are pressed simultaneously for
AUTO
1 2
TIMER SET TIME TEMP./DAY FAN
MODE CONTROL
MASTER
CONTROL
CLOCK ADJUST
ENERGY SAVE START/STOP
SET DAY OFF

Error contents

remote controller)

outdoor unit)

C O N T E N T S
45RLC3 / AO 45RPA3L
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
intermediately.
ERROR : Heat & Cool model (Reverse cycle) only
The LED lamps operate as follows (Table 2) according to the
error contents.
The LED lamps are on the outdoor unit board.
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
Outdoor high pressure
abnormal
Discharge pipe
temperature abnormal
: 0.5s ON / 0.5s OFF (flash)
: 0.1s ON / 0.1s OFF (flash)
When the fault is cleared, the LED lamp goes off.
However, for discharge pipe temperature abnormal and high
pressure abnormal, the LED lamp lights continuously for 24
hours, as long as the power is not turned off.

ERROR LED DISPLAY LAYOUT

IC1
- 7 -
Table 2
LED1 LED2 LED3 LED4 LED5 LED6
: OFF
: Indefinite
2004.01.21