Error Contents; Indoor Unit; Outdoor Unit - Fujitsu ARG25ALC Service Manual

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1. IN DOOR U N IT
W hen E E : E E blinks at the current tim e dis play, there is an error
ins ide the air conditioner. If the S E T T IM E button (
T E M P./DA Y button ( ) are pres s ed s im ultaneous ly for m ore than
three s econds , the s elf diagnos is check will s tart and the error
contents will be dis played at the current tim e dis play (Fig. 1).
W hen the operation lam p lights , pres s the S T A R T /S T OP button
and after operation lam p goes off, perform the s am e operation
(Fig. 1). Proces s the error contents by referring to (T able 2).
Fig. 1
NON STOP
CLOCK
TEMP
AUTO
C
HIGH
1
2
DEFROST
TIMER
SET TIME
TEMP./DAY
FAN
MODE
CONTROL
CONTROL
CLOCK ADJUST
ZONE
ENERGY SAVE
START/STOP
SET
DAY OFF
S top Operation.
T able 2
E rror cord
Com m unication error

(indoor unit

Com m unication error
(indoor unit
R oom tem perature s ens or open
R oom tem perature s ens or s hortcircuited
Indoor heat exchanger tem perature s ens or
open
Indoor heat exchanger tem perature s ens or
s hortcircuited
Outdoor heat exchanger tem perature
s ens or open
Outdoor heat exchanger tem perature
s ens or s hortcircuited
Power s ource connection error
Float s witch operated
Outdoor tem perature s ens or open
Outdoor tem perature s ens or s hortcircuited
Dis charge pipe tem perature s ens or open
Dis charge pipe tem perature s ens or
s hortcircuited
Outdoor high pres s ure abnorm al
Dis charge pipe tem perature abnorm al
M odel abnorm al
Indoor fan abnorm al
Outdoor s ignal abnorm al
Outdoor E E PR OM abnorm al
2003.05.08
E R R O R C O N T E N T S
AUTO
COOL
1
2
TIMER
SET TIME
TEMP./DAY
FAN
MODE
CONTROL
MASTER
CLOCK ADJUST
ENERGY SAVE
SET
DAY OFF
E rror contents
rem ote controller)

outdoor unit)

2. OU T DOOR U N IT
W hen the outdoor tem perature drops , the outdoor unit's fans m ay
) and
s witch to low s peed.
E R R OR : HE A T & COOL (R E V E R S E CY CLE ) ON LY
T he LE D lam ps operate as follows (T able 3) according to the error
contents .
T he LE D lam ps are on the outdoor unit board.
LE D1
0.1 s ec.
ON
MASTER
CONTROL
OFF
Quick flas h continued
START/STOP
0.5 s ec.
ON
OFF
2 s ec.
1 quick flas h repeated
0.5 s ec.
ON
OFF
2 s ec.
2 quick flas h repeated
0.5 s ec.
ON
OFF
3 quick flas h repeated
4 quick flas h repeated
5 quick flas h repeated
6 quick flas h repeated
7 quick flas h repeated
8 quick flas h repeated
W hen the fault is cleared, the LE D lam p goes off.
However, for dis charge pipe tem perature abnorm al and high pres -
s ure abnorm al, the LE D lam p lights continuous ly for 24 hours , as
long as the power is not turned off.
26
T able 3
E rror dis play
LE D2
0.1 s ec.
ON
OFF
Quick flas h continued
ON
OFF
Lighting continued
ON
OFF
Lighting continued
ON
2 s ec.
OFF
Lighting continued
Lighting continued
Lighting continued
Lighting continued
Lighting continued
Lighting continued
E rror contents
M odel abnorm al or
E E PR OM abnorm al
Power s ource
connection error
Dis charge tem perature
s ens or error
Outdoor heat exchanger
tem perature s ens or error
Outdoor temperature sensor error
Communication signal error
Indoor unit error
Discharge temperature abnormal
High pressure abnormal

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