FAQs
What is an E04-NN trouble code and how can I resolve this?
An E04-NN trouble indicates an RF transmit supervisory failure. This trouble is indicating that the control panel (receiver) has not received a signal from a transmitter within the programmed duration (the default time is 240 minutes). This default time is adjustable, however it need not be changed. Verify that the battery was properly installed in the transmitter. Ensure the proper point number of the transmitter was programmed (1 or 2). "NN" denotes the zone number to which the transmitter is programmed.