First Alert DWB-740 Home Security System User Manual


 
9
TROUBLESHOOTING
Problem Possible Causes Remedies
System message
shows “No Signal”
No power supply to
camera
Check power adapter and power cable
connection. If camera is running on battery
alone, you may need to replace batteries.
Camera is not paired
with receiver
See pairing operation for detail.
Service out of range Move the camera closer to the receiver.
Signal is blocked If possible, remove major obstacles in
between the camera and the receiver. Or,
relocate the camera to another location.
Low or unstable
signal
Antenna direction is
limited
Adjust the camera antenna and receiver
position.
Signal has been
blocked
If possible, remove major obstacles in
between the camera and receiver. Or,
relocate the camera to another location.
Strong radio signal
nearby
Keep WIFI router away from the camera
and/or receiver.
Strong
electromagnetic
interference nearby
Keep active appliances such as hair dryers,
heat fans, air conditioners, water pumps, or
microwave ovens away from the camera
and/or receiver.
Audio feedback Camera and receiver
are too close
The camera has a high sensitivity
microphone. Keep the camera at least 10
feet away from the receiver. If the camera
must be within 10 feet of the receiver, keep
the volume down.