How do I troubleshoot the AV-400?

This article discusses how to troubleshoot the AV-400.

Component	Troubleshooting Steps
Solar panel	With the solar panel facing the sun, place a multimeter on the pins of the main connector associated with the solar panel.
Charge controller (AV-400 controller)	With the solar panel facing the sun, and the system connected place a volt meter on the battery terminals. The battery voltage should slowly increase if the system is charging.
Batteries	Disconnect the battery, Check the battery voltage with a multi meter. The battery voltage should be approximately 12 V and may be higher if recently charged. A battery voltage under 10 V will not operate the system properly.
Lightbar	Isolate each lightbar from the system, and isolate the push button from the system if necessary. With just one lightbar connected to the system the lightbars will flash for 20 seconds during the initiation flash sequence when the main harness is connected to the controller.

Issue	Troubleshooting Steps
When the button is activated, only that system flashes. The unit on the other side of the crosswalk does not come on. (referred to as the local and remote systems)	Check that the battery voltage is around 12V or higher. Check that the antenna is securely attached to each solar. engine and is not damaged. The channel settings on the AV-400 are only read when the main connector is first connected, therefore if the channel setting is changed while the power is connected it will not be read. To ensure that all systems at a crosswalk are set to the same channel, disconnect and reconnect the main harness from the controller of each system, ensuring that the channel settings match. The systems are all factory set to channel 0. Channel settings are used to allow multiple crosswalks in close proximity to operate independently of each other. When the main connector is connected the local system will flash the initiation flash pattern for 20 seconds. When the push button is pressed on either system, the lightbars on both systems will flash.
When the button is activated, the lights on that system do not flash but the unit on the other side of the crosswalk flashes	Check that the battery voltage is around 12V or higher. To determine if there is an issue with the lightbar connection of the system local to the push button, disconnect and reconnect the main power harness to the controller. The system should start with an initiation flash pattern of 20 seconds. If this does not occur there is an issue with wiring connection to the lightbar(s). Disconnect the main harness, then disconnect both light bars. Disconnect the bridge wire from one lightbar to the other. Connect just one lightbar to the lightbar harness from the solar engine and then reconnect the main harness. Repeat this process for the second lightbar if applicable. If the connections are secure the lights will flash as soon as the main connector is connected.
When the button is activated, no lights flash	Check that the battery voltage is around 12V or higher. Check that dial 2, the lightbar setting is set at one of the lightbar settings. If it is set to position #4, No Lightbar, it will not flash. This setting is used for a wireless push button application. Ensure that the main harness is disconnected before making any setting changes. To isolate any potential issues with the push button, disconnect the main harness, then (if iNX is used) disconnect the iNX power harness from the battery to the iNX, then disconnect iNX harness from the iNX. Disconnect the LED wire from the lightbar. Disconnect the lightbars, and reconnect just one lightbar with no bridge wire, ensuring that each wire is inserted correctly into the connector. Connect the main harness. If the lightbar is wired correctly the initiation flash pattern will occur. Repeat these steps with the second lightbar (if applicable). To test the push button functionality, first touch the push button wires together. This should activate both systems.