Troubleshooting

The following cases may not always be a malfunction, please check it before asking for service.

Trouble

Analysis

 

If the protector trip or fuse is blown.

Does not run

Please wait for 3 minutes and start again,

protector device may be preventing unit to work.

 

.

 

If batteries in the remote controller exhausted.

 

If the plug is not properly plugged.

No cooling or

Is the air filter dirty?

Are the intakes and outlets of the air

heating air

 

conditioner blocked

 

Is the temperature set properly

 

If strong interference(from excessive static

Ineffective control

electricity discharge, power supply voltage

abnormality)presents, operation will be

 

abnormal. At this time, disconnect from the

 

power supply and connect back 2-3 seconds later.

Does not operate

Changing mode during operation, 3 minutes

immediately

will delay.

It is not

 

working

 

 

This odour may come from another source

Peculiar odour

such as furniture, cigarette etc, which is

 

sucked in the unit and blows out with the air.

A sound of

Caused by the flow of refrigerant in the

flowing water

air conditioner, not a trouble.

 

Defrosting sound in heating mode.

Cracking sound is

The sound may be generated by the expansion

or contraction of the front panel due to change

heard

of temperature.

 

Spray mist from

Mist appears when the room air becomes

very cold because of cool air discharged

the outlet

from indoor unit during COOLING or DRY

 

 

operation mode.

The compressor indicator(red) lights on constantly,

The unit is shifting from heating mode to defrost.

and indoor fan stops.

The indicator will lights off within ten minutes and

 

returns to heating mode.

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NEC RIH-3267, RIH-2667 user manual Troubleshooting, Trouble Analysis

RIH-2667, RIH-3267 specifications

The NEC RIH-2667 and RIH-3267 are advanced communication terminals designed to enhance connectivity in various environments, from corporate offices to remote locations. These devices are a product of NEC's commitment to delivering high-performance technology solutions.

The RIH-2667 is known for its robust and user-friendly design. It features a wide array of communication protocols, which makes it compatible with existing network infrastructures. This adaptability is crucial for businesses aiming to implement seamless integration across various devices. The terminal supports both wired and wireless connections, ensuring reliable communication regardless of the setting.

On the other hand, the RIH-3267 builds on the strengths of the RIH-2667, offering enhanced processing capabilities and agility. One of its main features is the support for high-speed data transmission, utilizing advanced algorithms for data optimization. It employs the latest telecommunications standards, enabling efficient handling of large volumes of data while maintaining a stable connection.

Both models are equipped with state-of-the-art security technologies, ensuring that communications remain confidential and secure. With features like end-to-end encryption and secure access protocols, they address the growing concerns of data privacy in today’s digital age.

The user interface of the RIH-2667 and RIH-3267 is intuitive, allowing for easy access to vital functions and settings. They come with customizable options for users, granting flexibility in terms of configuration and operation. This adaptability is particularly beneficial for organizations that require tailored solutions to meet specific operational demands.

In terms of physical characteristics, both devices are designed to be compact and lightweight, making them ideal for deployment in various locations without requiring significant space. Their rugged construction ensures durability, allowing them to withstand challenging environmental conditions.

Another noteworthy aspect is the customer support and maintenance services provided by NEC. The company offers comprehensive support programs, ensuring that users receive timely assistance, which is crucial for maintaining operational efficiency.

In conclusion, the NEC RIH-2667 and RIH-3267 are distinguished models in the field of communication technology. Their innovative features, robust security systems, and flexible configurations make them suitable for a wide range of applications. Organizations looking to enhance their communication capabilities will find these devices to be invaluable assets in achieving their strategic objectives.