Help: Reconnect APsystems Monitoring

Want to get the most out of your solar panels? Then it’s important that your APsystems monitoring is working properly. This allows you to keep track of your solar energy production and quickly detect any issues. Is your monitoring no longer working or is your ECU offline? In this article, we explain step by step how to reconnect APsystems monitoring to your Wi-Fi network.

Reconnect APsystems monitoring: EMA app

Have you installed a new router or changed your Wi-Fi password? If so, your APsystems ECU needs to reconnect to your Wi-Fi network. This can easily be done using the APsystems EMA app.

Make sure you are close to the ECU (the monitoring unit) and have the EMA app open. Then activate the ECU’s AP mode.

Activate AP mode on the APsystems ECU

The AP mode button is located on the side of the ECU. Press and hold it for approximately two seconds.

• On the ECU-R (the compact model), the button is located on the left-hand side.
• On the ECU-C (the larger model), the button is located on the bottom right-hand side.

After a few seconds, the ECU will appear as a Wi-Fi network in your phone’s Wi-Fi settings. By connecting to this network, you can access the ECU settings.

Reconnect the APsystems ECU to your Wi-Fi network

First, log out of the EMA app and open the Wi-Fi settings on your phone. Temporarily disable your mobile data connection (4G or 5G). Next, connect to the Wi-Fi network named “ECU”. You will be asked to enter a password. If it has never been changed, use the default password: 88888888. Open the EMA app again and select Local Access. Then go to WLAN, select your home Wi-Fi network and enter the correct Wi-Fi password. After a few minutes:

• On an ECU-R, the bottom LED should turn on.
• On an ECU-C, the middle LED should turn on.

You can now re-enable your mobile data, close the app and log back in. If the connection has been restored successfully, your solar production data will be displayed again.

Extra tips for reliable monitoring

Check your APsystems EMA app regularly to ensure your microinverters are producing power and that your monitoring is updating correctly. Also make sure your Wi-Fi connection is stable and that the ECU is installed in a location with a strong Wi-Fi signal. If the signal is weak, installing a Wi-Fi extender can help improve the connection.

By following these steps, you can ensure your APsystems monitoring is working correctly again, allowing you to keep track of your solar energy production at all times.