Fujitsu AST9, AST7, AST12 manual Operating Tips, Operation and Performance, Auto Restart

Page 18

TROUBLESHOOTING

 

Symptom

Items to check

See page

 

 

 

 

CHECK ONCE

Doesn’t operate at all:

● Has the circuit breaker been turn off?

 

MORE

 

● Has there been a power failure?

—

 

 

● Has a fuse blown out, or a circuit breaker been tripped?

 

 

 

 

 

 

 

● Is the timer operating?

9

 

 

 

 

 

Poor Cooling (or *Heating)

● Is the air filter dirty?

 

 

performance:

● Are the air conditioner’s intake grille or outlet port blocked?

 

 

 

 

 

 

● Did you adjust the room temperature settings (thermostat) cor-

 

 

 

rectly?

 

 

 

● Is there a window or door open?

—

 

 

 

 

 

● In the case of Cooling operation, is a window allowing bright sun-

 

 

 

light to enter? (Close the curtains.)

 

 

 

● In the case of Cooling operation, are there heating apparatus and

 

 

 

computers inside the room, or are there too many people in the

 

 

 

room?

 

 

 

 

 

 

 

● Is the unit set for SUPER QUIET operation?

7

 

 

 

 

 

The unit operates

● Are the Remote Control Unit’s batteries dead?

 

 

differently from the

● Are the Remote Control Unit’s batteries loaded properly?

5

 

remote control unit’s

 

 

 

 

 

 

setting:

 

 

 

 

 

 

If the problem persists after performing these checks, or if you notice burning smells, or the TIMER indicator Lamp (Fig. 3 6) flashes, immediately stop operation, turn off the circuit breaker, and consult authorized service personnel.

OPERATING TIPS

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

Operation and Performance

*Heating Performance

*Microcomputer-controlled Automatic Defrosting

●This air conditioner operates on the heat-pump principle, absorbing heat from outdoor air and transferring that heat indoors. As a result, the operating performance is reduced as outdoor air temperature drops. If you feel that insuffi- cient heating performance is being produced, we recom- mend you use this air conditioner in conjunction with another kind of heating appliance.

●Heat-pump air conditioners heat your entire room by recirculating air throughout the room, with the result that some time may be required after first starting the air con- ditioner until the room is heated.

●When using the Heating mode under conditions of low outdoor air temperature high humidity, frost may form on the outdoor unit, resulting in reduced operating per- formance.

In order to prevent this kind of reduced performance, this unit is equipped with a Microcomputer-controlled Auto- matic Defrosting function. If frost forms, the air condi- tioner will temporarily stop, and the defrosting circuit will operate briefly (for about 7 to 15 minutes).

During Automatic Defrosting operation, the OPERATION indicator lamp (red) will flash slowly.

*When Indoor and Outdoor Temperatures are High

When both indoor and outdoor temperatures are high dur- ing use of the heating mode, the outdoor unit’s fan may stop at times.

AUTO Restart

In Event of Power Interruption

●The air conditioner power has been interrupted by a power failure. The air conditioner will then restart auto- matically in its previous mode when the power is restored.

●Operated by setting before the power failure.

●If a power failure occurs during TIMER operation, the timer will be reset and the unit will begin (or stop) operation at the new time setting. In the event that this kind of timer fault occurs the TIMER Indicator Lamp (green) will flash (see page 4).

●Use of other electrical appliances (electric shaver, etc.) or nearby use of a wireless radio transmitter may cause the air conditioner to malfunction. In this event, temporarily disconnect the Power Supply Plug, reconnect it, and then use the remote control unit to resume operation.

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Contents Operating Manual Contents Safety PrecautionsFeatures and Functions Heat & Cool Model Reverse CycleCooling Model Heat & Cool Model Reverse Cycle Timer Indicator Lamp green Test RUNRemote Control Unit Holder Press the Time Adjust button againTo Use the Remote Control Unit PreparationTo Set the Thermostat Press the SET TEMP. buttons F To Select Mode Operation Press the START/STOP button JOperation To Set the Fan Speed Press the FAN Control buttonTo Stop Operation Press the START/STOP button About Mode OperationWhen set to Quiet Fan Cooling ModelAuto Cooling Model DryFan About the Program timer Timer OperationSet the desired times for OFF timer and on timer Will displayAbout the Sleep timer Sleep Timer OperationTo Change the Timer Settings During Heating operationAdjusting the Direction of AIR Circulation Right-Left Adjustment Adjust the Right-Left louversTypes of Air flow Direction Setting To select Swing Operation Press the Swing Louver button L Swing OperationManual Auto Operation About Swing OperationCleaning and Care Install the air cleaning filter set set Install the two air filters and close the intake grilleAir cleaning filter set Replacing dirty Air cleaning filters Replace them by two new air cleaning filtersMaintenance of Deodorizing Filters Troubleshooting Symptom ProblemOperating Tips Operation and PerformanceAuto Restart Multi-type Air conditioner Simultaneous Use of Multiple UnitsTemperature and Humidity Range Cooling OperationHeating Operation

AST7, AST9, AST12 specifications

Fujitsu has long been recognized as a leading provider of advanced servers and technology solutions, and among its various offerings, the AST series stands out. The AST12, AST9, and AST7 represent a range of high-performance servers designed to meet diverse business needs.

The Fujitsu AST12 is geared towards enterprises looking for robust performance in a compact design. It supports the latest generation of Intel processors, ensuring that users have access to powerful computing capabilities. One of its standout features is the scalable architecture, which allows businesses to expand their systems as their needs grow. The AST12 supports high memory capacities and features multiple storage options, including NVMe SSDs and traditional HDDs, enabling users to optimize their storage strategy. Additionally, the server is designed with advanced energy efficiency technologies, reducing operating costs while maintaining performance.

Moving on to the Fujitsu AST9, this version is tailored for mid-sized businesses that require a balance of performance and efficiency. The AST9 incorporates several virtualization features, making it an excellent choice for organizations looking to consolidate their workloads. With support for various operating systems and virtualization platforms, users can deploy applications seamlessly across their infrastructures. The AST9 is also equipped with enhanced security features, including hardware-based encryption and secure boot options, ensuring that data remains protected against evolving threats. Its management tools simplify system monitoring and maintenance, allowing for proactive management of resources.

The Fujitsu AST7, while the most compact of the series, does not compromise on performance. This server is ideal for smaller businesses or remote offices that require reliable computing solutions without the bulk of larger systems. The AST7 is designed for easy deployment and management, incorporating features that assist IT teams in maintaining optimal performance levels. It supports remote management, allowing administrators to monitor and troubleshoot systems without being physically present. The AST7 also emphasizes energy efficiency, ensuring that even small businesses can keep their operational costs low while benefiting from high-quality server technology.

In summary, the Fujitsu AST series—comprising the AST12, AST9, and AST7—provides a wide range of solutions tailored to meet various business needs. From high scalability and performance in the AST12 to the balanced efficiency of the AST9 and the compact design of the AST7, Fujitsu delivers versatile technology that caters to the modern enterprise's demands while ensuring reliability, security, and ease of management.
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