Fujitsu AUU36RC, Service Manual

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¥ 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.
¥ 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 ( ) are pressed simultaneously for
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
TIMER
MODE
SET
START/STOP
CLOCK ADJUST
SET TIME TEMP./DAY FAN
CONTROL
MASTER
CONTROL
2 1
HIGH
COOL
DEFROST
DAY OFF
AUTO
TIMER
MODE
SET
START/STOP
CLOCK ADJUST
SET TIME TEMP./DAY FAN
CONTROL
MASTER
CONTROL
2 1
DAY OFF
ENERGY SAVE ENERGY SAVE
ZONE
Stop operation.
Table 1
Error cord Error contents
Communication error
(indoor unit
remote controller)
Communication error
(indoor unit
outdoor unit)
Room temperature sensor open
Room temperature sensor shortcircuited
Indoor heat exchanger temperature sensor open
Indoor heat exchanger temperature sensor
shortcircuited
Outdoor heat exchanger temperature sensor
open
Outdoor heat exchanger temperature sensor
shortcircuited
Power source connection error
Float switch operated
Outdoor temperature sensor open
Outdoor temperature sensor shortcircuited
Discharge pipe temperature sensor open
Discharge pipe temperature sensor shortcircuited
Outdoor high pressure abnormal
Discharge pipe temperature abnormal
Model abnormal
Indoor fan abnormal
Outdoor signal abnormal
Outdoor EEPROM abnormal
1. REMOTE CONTROLLER 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 : 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 LED1 LED2 LED3 LED4 LED5 LED6
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) : OFF
: 0.1s ON / 0.1s OFF (flash) : Indefinite
IC1
CN
14
TES
T
LE
D1
LE
D2
LE
D3
LE
D4
LE
D5
LE
D6
ERROR LED DISPLAY LAYOUT
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.
Table 2
E R R O R C O N T E N T S