Fujitsu ROOM AIR CONDITIONER, ABU22, ABO22 operation manual Troubleshooting, Symptom Problem

Page 15

TROUBLESHOOTING

Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).

In the event of a malfunction (burning smell, etc.), immediately stop operation, turn off the elec-

WARNING! 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.

Before requesting service, perform the following checks:

 

Symptom

Problem

See Page

 

 

 

 

NORMAL

Doesn’t operate immedi-

● If the unit is stopped and then immediately started again, the com-

 

FUNCTION

ately:

pressor will not operate for about 3 minutes, in order to prevent

 

 

 

fuse blowouts.

—

 

 

 

 

 

● Whenever the power supply is disconnected and then recon-

 

 

 

nected, 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.

 

 

 

 

 

 

 

*● During Heating operation, a swoosh sound may be heard occa-

 

 

 

sionally. This sound is produced by the Automatic Defrosting op-

16

 

 

eration.

 

 

 

 

 

 

Odor:

● Occasionally an odor may be emitted from the indoor unit. This

 

 

 

may be the result of room odors (furniture, tobacco, etc.) which

—

 

 

have been taken into the air conditioner.

 

 

 

 

 

 

Mist or steam are

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

 

 

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.

 

 

 

 

 

 

 

*● During Heating operation, the outdoor unit’s fan may stop, and

 

 

 

steam may be seen rising from the unit. This is due to Automatic

16

 

 

Defrosting operation.

 

 

 

 

 

 

Airflow is weak or stops:

*● When Heating operation is started, fan speed is temporarily very

 

 

 

low, to allow internal parts to warm up.

 

 

 

*● During Heating operation, if the room temperature rises above

—

 

 

 

 

 

the thermostat setting, the outdoor unit will stop, and the indoor

 

 

 

unit will operate at very low fan speed. If you wish to warm the

 

 

 

room further, set the thermostat for a higher setting.

 

 

 

 

 

 

 

*● During Heating operation, the unit will temporarily stop opera-

 

 

 

tion (between 7 and 15 minutes) as the Automatic Defrosting mode

16

 

 

operates. During Automatic Defrosting operation, the OPERATION

 

 

 

 

 

indicator light will flash.

 

 

 

 

 

 

 

● The fan may operate at very low speed during Dry operation or

7

 

 

when the unit is monitoring the room’s temperature.

 

 

 

 

 

 

 

 

 

● In the monitor AUTO operation, the fan will operate at very low

7

 

 

speed.

 

 

 

 

 

 

 

 

Water is produced from

*● During Heating operation, water may be produced by the out-

16

 

the outdoor unit:

door unit due to Automatic Defrosting operation.

 

 

 

 

En-15

Page 14 Page 16
Image 15
Page 14 Page 16
Contents Operating Manual Safety Precautions ContentsAutomatic Operation Features and FunctionsEn-4 Name of PartsOutdoor Unit Intake Side D Outlet Side E Pipe Unit Time Adjust Button R Test RUN ButtonPreparation To Set the Fan Speed Press the FAN Control button To Select Mode Operation Press the START/STOP buttonOperation To Set the Thermostat Press the SET TEMP. buttonsAbout Mode Operation Timer Operation About the Sleep timer Sleep Timer OperationAbout the Program timer About the on timerRection Adjusting the Direction of AIR CirculationTypes of Air flow Direction Setting Example When set to horizontal air diAir flow direction set Range of swing Swing OperationTo Stop Horizontal airflow Swing Operation About Swing OperationEnergy Save Operation Manual Auto OperationAbout the Energy Save Re-attach the air filters to the intake grille Cleaning and CareClean the air filters Pull the air filters upward to remove themSymptom Problem TroubleshootingEn-16 Auto Restart Temperature and Humidity RangeEvent of Power Interruption Operating Tips800 888-FGAI

ROOM AIR CONDITIONER, ABU22, ABO22 specifications

The Fujitsu ABO22 and ABU22 ROOM AIR CONDITIONERS represent the pinnacle of modern cooling technology, designed to provide efficient, reliable climate control for both residential and commercial spaces. These models are characterized by their combination of advanced features, energy efficiency, and user-friendly operation, making them ideal choices for consumers seeking comfort and performance.

One of the standout features of the Fujitsu ABO22 and ABU22 is their energy efficiency. Both models are equipped with inverter technology, which allows for variable speed operation. This technology adjusts the compressor speed based on the cooling demand, leading to significantly reduced energy consumption compared to traditional air conditioning units. This not only lowers electricity bills but also contributes to a more sustainable environment by minimizing carbon emissions.

In terms of cooling performance, these air conditioners provide rapid cooling capability, ensuring that spaces reach the desired temperature quickly. The units come with multi-stage filtration systems that effectively trap dust, allergens, and pollutants, improving indoor air quality. This is particularly beneficial for allergy sufferers and those with respiratory issues, as clean air is essential for overall health.

User convenience is a key consideration in the design of the ABO22 and ABU22. Both units feature intuitive remote control options, allowing users to easily set parameters and adjust settings from anywhere in the room. Additionally, the models offer programmable timers and modes, including sleep mode and eco-mode, which further enhance comfort and efficiency.

Quiet operation is another characteristic of the Fujitsu ABO22 and ABU22. These air conditioners are designed to operate at lower noise levels, allowing users to enjoy a peaceful environment whether they are working, sleeping, or entertaining. This is particularly important in residential settings where noise can be a significant concern.

Moreover, the compact design of these units ensures easy installation and versatility, fitting seamlessly into various room layouts. With a sleek and modern aesthetic, they can complement different interior styles, making them a fashionable addition to any space.

Overall, the Fujitsu ABO22 and ABU22 ROOM AIR CONDITIONERS stand out for their energy efficiency, advanced air purification technologies, quiet operation, and user-friendly features, making them an excellent investment for enhanced indoor comfort. Whether for home or business, these air conditioners promise reliable and effective temperature control year-round.
Top Page Image Contents