3.Troubleshooting procedure

1)First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing ON and OFF to indicate an abnormality. To make sure, check how many times the abnormality indication is flashing ON and OFF before starting service work.

2)Before servicing check that the connector and terminal are connected properly.

3)If the electronic control P.C. board is supposed to be defective, check the copper foil pattern for disconnection and the components for bursting and discoloration.

4)When troubleshooting, refer to 8-2., 8-3. and 8-4.

4.How to replace batteries

Weak batteries may cause the remote controller malfunction.

In this case, replace the batteries to operate the remote controller normally.

Remove the front lid and insert batteries. Then reattach the front lid.

Press RESET button with tip end of ball point pen or the like, and then use the remote controller.

Insert the negative pole of the

batteries first. Check if the polarityRESET button of the batteries is correct.

NOTE : 1. If RESET button is not pressed, the remote controller may not operate correctly.

2.This remote controller has a circuit to automatically reset the microcomputer when batteries are replaced.

This function is equipped to prevent the microcomputer from malfunctioning due to the voltage drop caused by the battery replacement.

INFORMATION FOR MULTI SYSTEM AIR CONDITIONER

OUTDOOR UNIT : MXZ series

Multi system air conditioner can connect two or more indoor units with one outdoor unit.

•Unit won’t operate in case the total capacity of indoor units exceeds the capacity of outdoor units. Do not connect indoor units beyond the outdoor unit capacity.

Operation indicator lamp flashes as shown in the figure below.

•When you try to operate two or more indoor units with one outdoor unit simultaneously, one for the cooling and the other for heating, the operation mode of the indoor unit that operates earlier is selected. The other indoor units cannot operate, indicating as shown in the figure below. In this case, please set all the indoor units to the same operation mode.

OPERATION INDICATOR

Lighted

Blinking Not lighted

•When indoor unit starts the operation while the defrosting of outdoor unit is being done, it takes a few minutes (max. 10 minutes) to blow out the warm air.

•In the heating operation, though indoor unit that does not operate may get warm or the sound of refrigerant flowing may be heard, they are not malfunction. The reason is that the refrigerant continuously flows into it.

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Logitech OB450 REVISED EDITION-B, MSZ-A09NA Troubleshooting procedure, How to replace batteries, Outdoor Unit MXZ series
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MSZ-A09NA, OB450 REVISED EDITION-B specifications

The Logitech MSZ-A09NA, OB450 Revised Edition-B stands as a testament to professional-grade technology, designed for both home and office productivity. This advanced device combines functionality with sleek design, making it an essential tool for users demanding efficiency and performance.

At its core, the Logitech MSZ-A09NA is equipped with state-of-the-art input technologies that enhance user experience. Whether you are a gamer, an avid typist, or a creative professional, this model caters to diverse needs. The mouse features an ergonomic shape that allows for hours of comfortable use, while the advanced optical sensor ensures precision tracking on various surfaces.

One of its standout features is the customizable button layout. Users can program each of the additional buttons to suit specific tasks, making it an ideal choice for gamers who require quick access to critical commands or professionals who benefit from application shortcuts. The mouse supports multiple profiles, allowing for seamless transitions between different user preferences.

Connectivity is another significant strength of the Logitech MSZ-A09NA. The device offers both wired and wireless options, ensuring versatility for any setup. The wireless connection is powered by Logitech’s advanced technology, providing a reliable link without the clutter of cables. With a battery life that can last weeks on a single charge, this mouse eliminates the need for frequent interruptions.

Moreover, the OB450 Revised Edition-B features RGB lighting that can be customized through Logitech’s software. This not only enhances aesthetic appeal but also allows users to create personalized lighting effects that can match their workspace or reflect their personal style.

Durability is a hallmark of the Logitech MSZ-A09NA, built with high-quality materials that can withstand extensive daily use. The mouse buttons have been rigorously tested to ensure they stand the test of time, making it a worthy investment for any user.

In summary, the Logitech MSZ-A09NA, OB450 Revised Edition-B excels in providing a blend of comfort, customization, and connectivity. Its thoughtful design and advanced technology make it an exceptional choice for anyone looking to enhance their computing experience. Whether for professional work, gaming, or everyday tasks, this mouse is equipped to meet the demands of modern users, offering both reliability and style.
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