Chapter 8

 

 

 

 

 

 

 

Troubleshooting

 

 

 

 

 

 

Problem

Solution

 

 

 

 

 

 

DVR fails to start after being

Make sure the power switch on the DVR is turned on and that

 

 

connected to the power supply

there is sufficient power.

 

 

 

Make sure the start-up procedure is working.

 

 

 

 

 

 

 

Make sure the power supply has sufficient power to operate the

 

 

 

hard disks.

 

 

DVR restarts repeatedly

Disconnect all cameras and network connections, and start the

 

 

 

DVR. If this doesn't solve the problem, remove the cover and take

 

 

 

out the hard drive. A corrupted or damaged hard drive may cause

 

 

 

repeated reboots.

 

 

 

 

 

 

DVR crashed when recording

Check for problems with the HDD. If one of the hard disks has

 

 

or playing recorded information

failed or malfunctioned, replace it and try again.

 

 

 

 

 

 

 

Make sure the DVR is able to recognize the USB storage device.

 

 

Updating operation fails

Test more than one USB storage device to ensure compatibility.

 

 

 

Contact qualified technician to check for line voltage fluctuations.

 

 

 

 

 

 

Mouse does not work

Use the mouse provided with the DVR or try other mice to find

 

 

one that works. Wireless mice do not work with the DVR.

 

 

 

 

 

 

 

 

 

Recording function does not

Make sure HDD connections are correct.

 

 

Make sure HDD is formatted.

 

 

work properly

 

 

Make sure the menu settings are correct.

 

 

 

 

 

 

 

 

 

 

Make sure the video input, DVR, and monitor systems are

 

 

Image on the monitor appears

compatible, i.e. all NTSC or PAL.

 

 

in black and white rather than

At night time, most video appears black/white. If you find

 

 

color

incompatibility or inconsistency, set the monitor option to the

 

 

 

automatic identification state.

 

 

 

 

 

 

Nothing displayed on the

Make sure the monitor power supply is on and the brightness is at

 

 

its lowest condition.

 

 

monitor

Make sure the video cable is properly connected.

 

 

 

 

 

 

 

 

 

 

Check for interference (e.g., power lines, cell phones,

 

 

 

microwaves).

 

 

Image isn't clear

Make sure the video cable is not damaged and the connections are

 

 

good.

 

 

 

 

 

 

Check the condition of the camera, monitor and circuits for any

 

 

 

signs of damage or deterioration.

 

 

 

 

 

96

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First Alert 4800 user manual Troubleshooting
Page 101 Page 103

4800 specifications

The First Alert 4800 is a highly regarded smoke and carbon monoxide detector known for its reliability and advanced features. It is designed to enhance the safety of homes and businesses by promptly detecting smoke and hazardous carbon monoxide gases, which can pose serious threats to life and property.

One of the key features of the First Alert 4800 is its dual-sensor technology. This innovative design combines both photoelectric and ionization sensors, allowing the device to effectively sense slow, smoldering fires as well as fast-flaming fires. This dual approach significantly improves the chances of early detection, giving occupants crucial time to react in case of a fire emergency.

Another standout characteristic of the First Alert 4800 is its ability to detect dangerous levels of carbon monoxide. Carbon monoxide is often dubbed the "silent killer" because it is odorless and colorless, making it difficult to detect without proper equipment. The First Alert 4800 continuously monitors the air for this toxic gas, providing a reliable alarm when CO levels rise beyond safe thresholds.

The design of the First Alert 4800 incorporates a sleek and modern aesthetic that fits seamlessly into various home decors. Its unobtrusive appearance does not compromise its functionality. Furthermore, the unit features a clear digital display that indicates the levels of smoke and carbon monoxide detected, providing users with immediate information about their environment.

Installation and maintenance of the First Alert 4800 are user-friendly. The device comes with an easily accessible battery compartment and features a low-battery alert system. This ensures minimal disruption, as users can quickly replace batteries when needed. The unit is also equipped with a test button that allows users to check the functionality of the alarm with a simple press.

Another noteworthy technology included in the First Alert 4800 is its voice alarm feature. In addition to the standard alarm sounds, the device provides a voice alert that specifies the type of danger detected, whether it's smoke or carbon monoxide. This feature helps users make informed decisions in emergencies, particularly in stressful situations.

In summary, the First Alert 4800 is a cutting-edge smoke and carbon monoxide detector that prioritizes safety through its dual-sensor technology, modern design, and user-friendly features. With its reliable performance and intelligent alerts, it offers peace of mind to homeowners and businesses alike, ensuring that occupants are protected from the dangers of fire and toxic gases.
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