NIGHT OWL AHD7-441 User Manual

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CHAPTER 11: TROUBLESHOOTING

Mouse not detected by 

system.

There is no picture on 

selected 

channels/camera picture 

Is not being displayed.

System needs to be 

reset.

Camera cables are 

loose or have become 

disconnected.

Power off the system (disconnect power 

cable). Firmly connect a USB mouse to 

the USB Mouse port on the front panel 

of the system. Reconnect the power 

cable to the DC 19V port on the real 

panel.  

1. Check the camera video cable and 

connections.

2. Disconnect and reconnect the cable 

at the system and at the camera.

3. Try moving the camera to another 

channel or use another cable. 

The image on the DVR 

appears, but does not 

have sound.

Audio cables are loose or 

have been disconnected

Audio channels are 

disable.

Check the AUDIO connection to the 

DVR.

Left click in Live View to bring up the 

Volume control and ensure that the 

channel(s) are not low or muted.

Volume on external 

speakers (not included) 

is low or off.

A "whirring" noise is 

coming from the system.

The system beeps at 

startup.

The system beeps 

during motion detection.

I am not receiving email 

notifications.

Email notification is 

disabled.

Default setting is 

disabled, but you have 

not entered your own 

SMTP information.

See section 7.1.2. for details on email 

configuration.

Fan is active.

Motion detection is 

enabled, but the alarm 

buzzer is activated.

The beep at startup is normal.

Go to the General Menu > Alarm, 

select the channel and turn 

Buzzer to 

OFF.

The noise means the exhaust fan is 

working normal.

Increase volume on external speakers 

(not included).