FAQs
What is an E16-NN trouble code and how can I resolve this?
An E16-NN trouble indicates that an RF receiver is receiving jammed (indecipherable) signals. This transmitter interference can be caused by extreme atmospheric conditions. Try relocating the receiver. If the issue persists, you may be in an area that has a high concentration of RF noise (next to a radio station or tower, or a military base). Consider hard wiring the devices. NN denotes the receiver number.
Additional Information
The system is most likely receiving constant carrier signals from an RF source close to the 319.5MHz range used by the Gemini system. Remove the cover of the receiver and verify the green "Receive" LED only lights when receiving a transmission from one of the transmitters. If the LED is lit steady, this indicates the receiver is receiving a constant 319.5MHz signal. To find the source of the signal, remove the battery from each transmitter while observing this LED. If the LED turns off when a battery is removed, this could indicate the transmitter is malfunctioning or is constantly transmitting for some other reason. If the LED is still lit after removing all transmitter batteries, other possible RF sources must be explored: Check for electrical appliances that may be radiating RF, such as computers or powered antennas, etc. Turn off each device until the LED turns off. If still lit, find the circuit breaker panel of the premises and turn off each breaker one by one. When turning off a breaker also turns off the LED, the errant RF signal is likely originating from the area of the premises powered by that breaker. If after powering down all devices in the premises and the LED is still lit, either the errant RF source is located outside the premises, or the RF receiver is likely inoperable and must be replaced.