Errors And Self Diagnosis; Troubleshooting - Fujitsu ART90TL Operating Manual

ERRORS AND SELF DIAGNOSIS

1 2
TIMER SET TIME TEMP./DAY
MODE
CLOCK ADJUST
ZONE
SET
If there is a problem with the air conditioner, it will stop run-
ning and "EE: EE" will be displayed instead of the clock.
(1) If the operation lamp is on then press the START/
STOP button to turn it off.
(2) Press the SET TIME (M) and the SET TEMP./DAY (M)
buttons at the same time for more than three seconds
to start the self diagnosis check.
An error code will be displayed in the clock display area.
(3) Press the SET TIME (M) and the SET TEMP./DAY (M)
buttons again for more than three seconds to end the
self diagnosis check.
Error Code
Communication error
(indoor unit
Communication error
(indoor unit
Room temperature sensor open

TROUBLESHOOTING

Instructions relating to heating (*) are applicable only to "HEAT & COOL MODEL" (Reverse Cycle).
WARNING!
Before requesting service, perform the following checks:
NORMAL Doesn't operate immedi-
FUNCTION ately:
13
Error Code
AUTO AUTO
DEFROST TEST
FAN
CONTROL
MASTER
CONTROL
ENERGY SAVE START/STOP
DAY OFF
Error contents
t s remote controller)
t outdoor unit)
s
In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the elec-
trical breaker, and consult authorized service personnel.
Merely turning off the unit's power switch will not completely disconnect the unit from the power
source. Always be sure to turn off the electrical breaker to ensure that power is completely off.
Symptom
G If the unit is stopped and then immediately started again, the com-
pressor will not operate for about 3 minutes, in order to prevent
fuse blowouts.
G Whenever the electrical breaker is turned off then on again, the
protection circuit will operate for about 3 minutes, preventing unit
operation during that period.
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
Problem See Page
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