Fujitsu AOU12C1, ASU9C1, ASU12C1, AOU9C1 manual Trouble Shooting, Symptom Problem See

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TROUBLE SHOOTING

In the event of a malfunction (burning smell, etc.), immediately stop operation, disconnect

WARNING! the Power 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 disconnect the Power or turn off your circuit breaker to ensure that power is completely off.

Before requesting service, perform the following checks:

 

Symptom

Problem

See Page

 

 

 

 

NORMAL

Doesn’t operate immediately:

÷ If the unit is stopped and then immediately started again, the

 

FUNCTIONS

 

compressor will not operate for about 3 minutes, in order to

 

 

 

prevent fuse blowouts.

––––

 

 

÷ Whenever the Power is disconnected and then reconnected to

 

 

 

 

 

a power outlet, the protection circuit will operate for about 3

 

 

 

minutes, preventing unit operation during that period.

 

 

 

 

 

 

Noise is heard:

÷ During operation and immediately after stopping the unit, the

 

 

 

sound of water flowing in the air conditioner’s piping may be

 

 

 

heard. Also, noise may be particularly noticeable for about 2

 

 

 

to 3 minutes after starting operation (sound of coolant flowing).

––––

 

 

÷ During operation, a slight squeaking sound may be heard. This

 

 

 

 

 

is the result of minute expansion and contraction of the front

 

 

 

cover due to temperature changes.

 

 

 

 

 

 

Smells:

÷ Some smell may be emitted from the indoor unit. This smell is

 

 

 

the result of room smells (furniture, tobacco, etc.) which have

––––

 

 

been taken into the air conditioner.

 

 

 

 

 

 

 

 

Mist or steam are emitted:

÷ During Cooling or Dry operation, a thin mist may be seen

 

 

 

emitted from the indoor unit. This results from the sudden

 

 

 

Cooling of room air by the air emitted from the air conditioner,

––––

 

 

resulting in condensation and misting.

 

 

 

 

 

 

 

 

Airflow is weak or stops:

÷ The fan may operate at very low speed during Dry operation

7

 

 

or when the unit is monitoring the room’s temperature.

 

 

 

 

 

 

 

 

 

÷ During SUPER QUIET operation, the fan will operate at very

7

 

 

low speed.

 

 

 

 

 

 

 

 

 

÷ In the monitor AUTO operation, the fan will operate at very

7

 

 

low speed.

 

 

 

 

 

 

 

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Contents Page Timer Reset Contents Safety PrecautionsBe careful to provide adequate ventilation PrecautionsDo not stay in direct cooling airflow for long periods ¶ Water leaking inside the unit could damage electricalOutlet port Do not use inflammable gases near the air ConditionerFeatures and Functions Automatic OperationName of Parts Preparation Operation About Mode Operation To Stop Operation Press the START/STOP buttonTimer Operation Sleep Timer Operation About the Sleep timerDuring Cooling/Dry operation Adjusting the Direction of AIR Circulation Right-Left Adjustment Adjust the Right-Left LouversTo Select Swing Operation Press the Swing Louver button £ Swing OperationManual Auto Operation About Swing OperationCleaning and Care Cleaning the Indoor UnitInspections and Repairs Unlock the Intake Grille Cleaning the Intake Grille Open the Intake GrilleClean with water Lock the Intake GrilleRemove dust with a vacuum cleaner or by washing When using the optional Air Cleaning FilterReplace the Air Filter and close the Intake Grille Trouble Shooting Symptom Problem SeeOperating Tips Event of Power InterruptionSymptom Items to Check Operation and PerformanceIndoor temperature Temperature and Humidity RangeCooling and Dry Mode Outdoor temperature800 888-FGAI