Fujitsu AOU12C1 User Manual (English)

Questions and Answers:

C
cmendezAug 6, 2025
Why is my Fujitsu Air Conditioner not cooling well?
- R
  Ronald WhiteAug 6, 2025
  Several factors can impact the cooling performance of your Fujitsu Air Conditioner. Ensure the air filter is clean and that the intake grille or outlet port aren't blocked. Check if the room temperature settings (thermostat) are correctly adjusted. Also, make sure no windows or doors are open, and bright sunlight isn't entering the room. Other factors include the presence of heating apparatus, computers, or too many people in the room. Finally, check if the unit is set to SUPER QUIET operation.
G
Geoffrey ByrdAug 11, 2025
Why Fujitsu AOU12C1 Air Conditioner doesn’t operate immediately?
- T
  Thomas PerezAug 11, 2025
  If your Fujitsu unit is stopped and then immediately started again, the compressor will not operate for about 3 minutes to prevent fuse blowouts. Also, 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.
N
Nicholas SmithAug 16, 2025
What to do if my Fujitsu AOU12C1 doesn’t operate at all?
- P
  Patrick RoseAug 16, 2025
  If your Fujitsu Air Conditioner isn't operating, check for a power failure first. Then, verify if a fuse has blown or a circuit breaker has tripped. Ensure the POWER switch is not in the OFF position and that the timer isn't operating.
Y
ycastanedaAug 21, 2025
Why does my Fujitsu AOU12C1 Air Conditioner smells?
- T
  Tyler CainAug 21, 2025
  A smell emitted from your Fujitsu Air Conditioner's indoor unit may be due to room odors (from furniture, tobacco, etc.) that have been drawn into the unit.
K
Kelly GrimesAug 27, 2025
Why is my Fujitsu Air Conditioner making noise?
- E
  Elizabeth SmithAug 27, 2025
  During operation, and immediately after stopping your Fujitsu Air Conditioner, you might hear the sound of water flowing in the piping. Also, noise may be particularly noticeable for about 2 to 3 minutes after starting operation due to the sound of coolant flowing. A slight squeaking sound may also occur due to minute expansion and contraction of the front cover because of temperature changes.
C
cooklindseyAug 31, 2025
Why does Fujitsu Air Conditioner emit mist or steam?
- B
  Billy SimpsonAug 31, 2025
  During Cooling or Dry operation, a thin mist may be seen emitted from the indoor unit of your Fujitsu Air Conditioner. This results from the sudden cooling of room air by the air emitted from the air conditioner, causing condensation and misting.

Fujitsu AOU12C1 Specifications

General

Brand	Fujitsu
Model	AOU12C1
Category	Air Conditioner
Language	English

Summary

SAFETY PRECAUTIONS

General Warnings

General warnings about potential hazards like death or serious injury.

General Cautions

General cautions about potential personal harm or property damage.

Safety Symbols

Explanation of warning, caution, and danger symbols used in the manual.

PRECAUTIONS

Specific Warnings

Specific critical safety instructions to prevent severe harm or fire.

Specific Cautions

Specific instructions to prevent minor harm, property damage, or improper operation.

FEATURES AND FUNCTIONS

Automatic Operation

Unit begins automatic operation in heating, cooling, dry, or monitor modes.

Sleep Timer

Thermostat setting gradually raises during cooling mode, unit turns off at set time.

Wireless Remote Control Unit

Allows convenient control of air conditioner operation.

Swing Operation

Air flow direction louvers swing automatically to direct air everywhere in the room.

Removable Intake Grille

Indoor unit's intake grille can be removed for easy cleaning and maintenance.

Mildew-Resistant Filter

Air filter treated to resist mildew growth for cleaner use and easier care.

Super Quiet Operation

FAN CONTROL selects QUIET for reduced airflow and quieter operation.

NAME OF PARTS

Indoor Unit Parts

Identification of components of the indoor unit with corresponding numbers.

Outdoor Unit Parts

Identification of components of the outdoor unit with corresponding numbers.

Remote Control Unit Parts

Identification of remote control buttons and display elements with numbers.

PREPARATION

Turn on the Power

Instructions for turning on the power via circuit breaker.

Load Batteries

Steps for loading AAA batteries into the remote control unit.

Set the Current Time

Procedure for setting the current time on the remote control unit.

Remote Control Unit Holder

Instructions for mounting the remote control unit holder.

OPERATION

Select Mode Operation

How to select operating modes like AUTO, COOL, DRY, FAN using buttons.

Set the Thermostat

Instructions for adjusting the thermostat setting using temperature set buttons.

Set the Fan Speed

How to set fan speed to AUTO, HIGH, MED, LOW, or QUIET.

TIMER OPERATION

Use ON timer or OFF timer

Steps to set the ON or OFF timer for the air conditioner.

Use Program timer

How to set a program timer for sequential ON/OFF operations.

Cancel Timer

Procedure to cancel any active timer setting.

Change Timer Setting

Steps to modify an existing timer setting.

Stop Operation During Timer

How to stop the unit while a timer is active.

Change Operating Conditions

How to adjust mode or fan speed after setting a timer.

SLEEP TIMER OPERATION

Use the SLEEP Timer

How to activate the sleep timer function.

Change the Timer Setting

Steps to set or adjust the sleep timer duration.

Cancel the Timer

Procedure to cancel the sleep timer.

Stop Operation During Timer

How to stop the unit while the sleep timer is active.

About the SLEEP timer

Explanation of how the sleep timer modifies temperature settings.

ADJUSTING THE DIRECTION OF AIR CIRCULATION

Vertical Air Direction Adjustment

How to adjust vertical airflow using the remote control button.

Right-Left Airflow Adjustment

Manual adjustment of horizontal airflow direction using louvers.

SWING OPERATION

Select SWING Operation

How to activate the automatic swing function for airflow.

Stop SWING Operation

How to deactivate the automatic swing function.

About Swing Operation

Details on swing ranges and conditions.

MANUAL AUTO OPERATION

Use the Main Unit Controls

How to operate the unit using the main unit's controls when remote is unavailable.

CLEANING AND CARE

Cleaning the Indoor Unit

Instructions for wiping the indoor unit clean with water.

When Not Using for Extended Periods

Advice on preparing the unit for storage for one month or more.

Inspections and Repairs

Recommendation for regular professional maintenance and inspections.

TROUBLE SHOOTING

Normal Functions

Explains common normal sounds and operations that might seem like issues.

Airflow Issues

Explains weak airflow during specific modes like Dry or SUPER QUIET.

OPERATING TIPS

Temperature and Humidity Range

Specifies the recommended operating ranges for indoor and outdoor conditions.

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Fujitsu AOU12C1 User Manual

Table of Contents

Questions and Answers:

Fujitsu AOU12C1 Specifications

Summary

SAFETY PRECAUTIONS

General Warnings

General Cautions

Safety Symbols

PRECAUTIONS

Specific Warnings

Specific Cautions

FEATURES AND FUNCTIONS

Automatic Operation

Sleep Timer

Wireless Remote Control Unit

Swing Operation

Removable Intake Grille

Mildew-Resistant Filter

Super Quiet Operation

NAME OF PARTS

Indoor Unit Parts

Outdoor Unit Parts

Remote Control Unit Parts

PREPARATION

Turn on the Power

Load Batteries

Set the Current Time

Remote Control Unit Holder

OPERATION

Select Mode Operation

Set the Thermostat

Set the Fan Speed

TIMER OPERATION

Use ON timer or OFF timer

Use Program timer

Cancel Timer

Change Timer Setting

Stop Operation During Timer

Change Operating Conditions

SLEEP TIMER OPERATION

Use the SLEEP Timer

Change the Timer Setting

Cancel the Timer

Stop Operation During Timer

About the SLEEP timer

ADJUSTING THE DIRECTION OF AIR CIRCULATION

Vertical Air Direction Adjustment

Right-Left Airflow Adjustment

SWING OPERATION

Select SWING Operation

Stop SWING Operation

About Swing Operation

MANUAL AUTO OPERATION

Use the Main Unit Controls

CLEANING AND CARE

Cleaning the Indoor Unit

When Not Using for Extended Periods

Inspections and Repairs

TROUBLE SHOOTING

Normal Functions

Airflow Issues

OPERATING TIPS

Temperature and Humidity Range

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