Fujitsu AOG45FMAXT, Service Manual

Page: 12 / 25

CAUTION
Supply power to the crankcase heater for at least 12
hours before the start of operation in winter.
(1) Stop the air conditioner operation.
(2) Press the master control button and the fan control button si-
multaneously for 2 seconds or more to start the test run.
(3) Press the start/stop button to stop the test run.
[SELF-DIAGNOSIS]
When the error indication “E:EE” is displayed, follow the following
items to perform the self-diagnosis. “E:EE” indicates an error has
occurred.
SU MO TU WE TH FR SA
1. REMOTE CONTROLLER DISPLAY
(1) Stop the air conditioner operation.
(2) Press the set temperature buttons
simultaneously for 5
seconds or more to start the self-diagnosis.
Refer to the following tables for the description of each error
code.
(3) Press the set temperature buttons simultaneously for 5
seconds or more to stop the self-diagnosis.
Error code Error contents
Communication error
(indoor unit
remote controller)
Communication error
(indoor unit
outdoor 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
00
01
02
03
04
05
06
07
08
09
0A
0b
Unit number (usually 0)
Error code
Test run display
Error code Error contents
Discharge pipe temperature sensor or compressor
temperature sensor open
Discharge pipe temperature sensor or compressor
temperature sensor short-circuited
Outdoor high pressure abnormal
Discharge pipe temperature or compressor
temperature abnormal
Model abnormal
Indoor fan abnormal
Outdoor signal abnormal
Outdoor EEPROM abnormal
0c
0d
0E
0F
11
12
13
14
EX. Self-diagnosis
flash
1flash
2 flash
3 flash
4 flash
5 flash
6 flash
7 flash
8 flash
9 flash
10 flash
flash
Lighting
Lighting
Lighting
Lighting
Lighting
Lighting
Lighting
Lighting
Lighting
Lighting
Model abnormal or EEPROM abnormal
Power source connection error
Discharge temp. sensor error
Heat exchanger temp. sensor error
Outdoor temp. sensor error
Communication signal error
Indoor unit error
Discharge temp. abnormal
High pressure abnormal
Compressor temp. abnormal
Compressor temp. sensor error
No error. Protect operation
Dislighting
2. OUTDOOR UNIT LEDS
Heat & Cool model (reverse cycle) only
When a malfunction occurs in the out-
door unit, the LEDs on the circuit board
light to indicate the error. Refer to the
following table for the description of
each error according to the LEDs.
LED1 LED2 Error contents
When the fault is cleared, the LED lamp goes off.
However, for discharge pipe temperature abnormal and high pres-
sure abnormal, the LED lamp lights continuously for 24 hours, as
long as the power is not turned off.
LED2 LED1
LED layout
ERROR CONTENTS
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