TROUBLESHOOTING

 

Symptom

Items to check

See Page

 

 

 

 

CHECK ONCE

Doesn’t operate at all:

● Is the Power Supply Plug disconnected its outlet?

 

MORE

 

● Has there been a power failure?

—

 

 

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

 

 

 

 

 

 

 

● Is the timer operating?

7 - 8

 

 

 

 

 

 

● Is the Air Filter dirty?

 

 

 

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

 

 

Poor Cooling performance:

● 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?

5

 

 

 

 

 

The unit operates

● Are the Remote Control Unit’s batteries dead?

 

 

differently from the Remote

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

4

 

Control Unit’s setting:

 

 

 

 

 

 

If the problem persists after performing these checks, or if you notice burning smells, or theTIMER Indicator Lamp (Fig. 3 6) and the OPERATION Indicator Lamp (Fig. 3 5) flashes, immediately stop operation, disconnect the Power Supply Plug, and consult authorized service personnel.

OPERATING TIPS

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 will flash (see Page. 3).

●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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Fujitsu AOU18CL, ASU18CL operation manual Operating Tips, Auto Restart, Event of Power Interruption, Symptom Items to check
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ASU18CL, AOU18CL specifications

Fujitsu has long been a leader in the HVAC industry, providing efficient and reliable air conditioning solutions. Among its notable offerings are the Fujitsu ASU18CL and AOU18CL models. These indoor and outdoor units, respectively, are designed to deliver powerful cooling and heating performance, making them suitable for a wide range of applications in residential and light commercial settings.

The ASU18CL indoor unit boasts an impressive cooling capacity of 18,000 BTUs, ensuring sufficient airflow even during the hottest months of the year. Designed with user comfort in mind, it features a sleek and modern aesthetic that can seamlessly integrate into various interior designs. The unit is equipped with an advanced multi-stage filtration system, which helps to improve indoor air quality by removing dust, allergens, and other airborne particles.

One of the standout features of the ASU18CL is its inverter technology. This technology allows the system to adjust its compressor speed according to the ambient temperature, resulting in more consistent temperatures and enhanced energy efficiency. As a result, users can expect lower energy bills while benefiting from reliable performance. The unit operates quietly, making it ideal for bedrooms, offices, and other quiet spaces.

On the outdoor side, the AOU18CL complements the ASU18CL with its durable construction and efficient performance. Designed to withstand varying weather conditions, the outdoor unit features a robust cabinet that protects the internal components from the elements. It too utilizes inverter technology, enhancing the overall efficiency of the system.

Both the ASU18CL and AOU18CL units are equipped with user-friendly controls, allowing for easy temperature adjustments and system settings. Additionally, these models are compatible with advanced remote control options, enabling users to manage their climate settings remotely.

Energy Star rated, these units comply with stringent energy efficiency standards. The combination of high efficiency and eco-friendly refrigerant reduces their environmental impact. They are also designed for easy installation and maintenance, ensuring that both homeowners and professionals can enjoy a hassle-free experience.

In summary, the Fujitsu ASU18CL and AOU18CL units combine advanced technology with practical features. Their inverter technology, energy efficiency, and user-friendly controls make them ideal choices for those seeking reliable air conditioning solutions that enhance comfort while being mindful of energy usage and the environment.
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